Find the word that fits

Necessary: alternatives and connections

Begin with the reviewed alternatives, then explore broader connections without treating every related word as an automatic substitute.

Try an example: important law show help change happy
26,102 words currently have published synonym-style alternatives
90,593 searchable synonym connections
350,924 published thesaurus relationships of every type
Start with the meaning

Necessary

Such as must be; impossible to be otherwise; not to be avoided; inevitable.

80 useful connections shown 41 reviewed relationships and 39 broader connections.
Best place to begin

Reviewed alternatives and contrasts

These links were deliberately created. Use the interchangeability score and guidance to judge whether a word will work in your sentence.

Similar meaning 18

Essential 84% connected

Belonging to the essence, or that which makes an object, or class of objects, what it is.

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Essential 84% connected

Belonging to the essence, or that which makes an object, or class of objects, what it is.

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Incumbent 84% connected

Lying; resting; reclining; recumbent; superimposed; superincumbent.

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Incumbent 84% connected

Lying; resting; reclining; recumbent; superimposed; superincumbent.

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Indispensable 84% connected

Not dispensable; impossible to be omitted, remitted, or spared; absolutely necessary or requisite.

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Indispensable 84% connected

Not dispensable; impossible to be omitted, remitted, or spared; absolutely necessary or requisite.

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Inevitable 84% connected

Not evitable; incapable of being shunned; unavoidable; certain.

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Inevitable 84% connected

Not evitable; incapable of being shunned; unavoidable; certain.

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Needed 84% connected

of Need

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Needed 84% connected

of Need

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Needful 84% connected

Full of need; in need or want; needy; distressing.

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Needful 84% connected

Full of need; in need or want; needy; distressing.

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Obligatory 84% connected

Binding in law or conscience; imposing duty or obligation; requiring performance or forbearance of some act; -- often followed by on or upon; as, obe…

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Obligatory 84% connected

Binding in law or conscience; imposing duty or obligation; requiring performance or forbearance of some act; -- often followed by on or upon; as, obe…

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Required 84% connected

of Require

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Required 84% connected

of Require

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Requisite 84% connected

That which is required, or is necessary; something indispensable.

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Requisite 84% connected

That which is required, or is necessary; something indispensable.

oewn 2023 50% interchangeable

Open English WordNet links these adjective senses as similar in meaning; they are not necessarily interchangeable.

Narrower term 4

Desideratum 76% connected

Anything desired; that of which the lack is felt; a want generally felt and acknowledge.

oewn 2023 0% interchangeable

Open English WordNet identifies the related term as a narrower or more specific lexical category.

Must 76% connected

To be obliged; to be necessitated; -- expressing either physical or moral necessity; as, a man must eat for nourishment; we must submit to the laws.

oewn 2023 0% interchangeable

Open English WordNet identifies the related term as a narrower or more specific lexical category.

Need 76% connected

A state that requires supply or relief; pressing occasion for something; necessity; urgent want.

oewn 2023 0% interchangeable

Open English WordNet identifies the related term as a narrower or more specific lexical category.

Want 76% connected

The state of not having; the condition of being without anything; absence or scarcity of what is needed or desired; deficiency; lack; as, a want of p…

oewn 2023 0% interchangeable

Open English WordNet identifies the related term as a narrower or more specific lexical category.

Broader term 1

Thing 76% connected

Whatever exists, or is conceived to exist, as a separate entity, whether animate or inanimate; any separable or distinguishable object of thought.

oewn 2023 0% interchangeable

Open English WordNet identifies the related term as a broader lexical category for at least one sense.

Derivationally related 6

Necessity 74% connected

The quality or state of being necessary, unavoidable, or absolutely requisite; inevitableness; indispensableness.

oewn 2023 15% interchangeable

Open English WordNet records a derivational relationship between these word forms.

Necessity 74% connected

The quality or state of being necessary, unavoidable, or absolutely requisite; inevitableness; indispensableness.

oewn 2023 15% interchangeable

Open English WordNet records a derivational relationship between these word forms.

Requirement 74% connected

The act of requiring; demand; requisition.

oewn 2023 15% interchangeable

Open English WordNet records a derivational relationship between these word forms.

Requirement 74% connected

The act of requiring; demand; requisition.

oewn 2023 15% interchangeable

Open English WordNet records a derivational relationship between these word forms.

Requisite 74% connected

That which is required, or is necessary; something indispensable.

oewn 2023 15% interchangeable

Open English WordNet records a derivational relationship between these word forms.

Requisite 74% connected

That which is required, or is necessary; something indispensable.

oewn 2023 15% interchangeable

Open English WordNet records a derivational relationship between these word forms.

See also 6

Essential 66% connected

Belonging to the essence, or that which makes an object, or class of objects, what it is.

oewn 2023 0% interchangeable

Open English WordNet provides this as a see-also lexical relationship.

Essential 66% connected

Belonging to the essence, or that which makes an object, or class of objects, what it is.

oewn 2023 0% interchangeable

Open English WordNet provides this as a see-also lexical relationship.

Indispensable 66% connected

Not dispensable; impossible to be omitted, remitted, or spared; absolutely necessary or requisite.

oewn 2023 0% interchangeable

Open English WordNet provides this as a see-also lexical relationship.

Indispensable 66% connected

Not dispensable; impossible to be omitted, remitted, or spared; absolutely necessary or requisite.

oewn 2023 0% interchangeable

Open English WordNet provides this as a see-also lexical relationship.

Obligatory 66% connected

Binding in law or conscience; imposing duty or obligation; requiring performance or forbearance of some act; -- often followed by on or upon; as, obe…

oewn 2023 0% interchangeable

Open English WordNet provides this as a see-also lexical relationship.

Obligatory 66% connected

Binding in law or conscience; imposing duty or obligation; requiring performance or forbearance of some act; -- often followed by on or upon; as, obe…

oewn 2023 0% interchangeable

Open English WordNet provides this as a see-also lexical relationship.

Attribute 2

Necessity 66% connected

The quality or state of being necessary, unavoidable, or absolutely requisite; inevitableness; indispensableness.

oewn 2023 0% interchangeable

Open English WordNet links these concepts through an attribute relationship.

Necessity 66% connected

The quality or state of being necessary, unavoidable, or absolutely requisite; inevitableness; indispensableness.

oewn 2023 0% interchangeable

Open English WordNet links these concepts through an attribute relationship.

Synonym 4

Essential 92% connected

Belonging to the essence, or that which makes an object, or class of objects, what it is.

oewn 2023 68% interchangeable

Open English WordNet places these words in at least one shared synset. They share a lexicalised sense, but context, register and collocation should still be checked before substitution.

Necessity 92% connected

The quality or state of being necessary, unavoidable, or absolutely requisite; inevitableness; indispensableness.

oewn 2023 68% interchangeable

Open English WordNet places these words in at least one shared synset. They share a lexicalised sense, but context, register and collocation should still be checked before substitution.

Requirement 92% connected

The act of requiring; demand; requisition.

oewn 2023 68% interchangeable

Open English WordNet places these words in at least one shared synset. They share a lexicalised sense, but context, register and collocation should still be checked before substitution.

Requisite 92% connected

That which is required, or is necessary; something indispensable.

oewn 2023 68% interchangeable

Open English WordNet places these words in at least one shared synset. They share a lexicalised sense, but context, register and collocation should still be checked before substitution.

Explore further

Words connected by meaning

Their definitions overlap or refer to similar ideas. Use these to widen your search, then compare the exact meanings.