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Obligatory: alternatives and connections

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

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26,102 words currently have published synonym-style alternatives
90,593 searchable synonym connections
350,924 published thesaurus relationships of every type
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Obligatory

Binding in law or conscience; imposing duty or obligation; requiring performance or forbearance of some act; -- often followed by on or upon; as, obedience is obligatory on a soldier.

62 useful connections shown 20 reviewed relationships and 42 broader connections.
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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 16

Bounden 84% connected

of Bind

oewn 2023 50% interchangeable

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

Bounden 84% connected

of Bind

oewn 2023 50% interchangeable

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

Compulsory 84% connected

Having the power of compulsion; constraining.

oewn 2023 50% interchangeable

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

Compulsory 84% connected

Having the power of compulsion; constraining.

oewn 2023 50% interchangeable

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

Imposed 84% connected

of Impose

oewn 2023 50% interchangeable

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

Imposed 84% connected

of Impose

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.

Mandatory 84% connected

Containing a command; preceptive; directory.

oewn 2023 50% interchangeable

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

Mandatory 84% connected

Containing a command; preceptive; directory.

oewn 2023 50% interchangeable

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

Necessary 84% connected

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

oewn 2023 50% interchangeable

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

Necessary 84% connected

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

oewn 2023 50% interchangeable

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

Prerequisite 84% connected

Previously required; necessary as a preliminary to any proposed effect or end; as, prerequisite conditions of success.

oewn 2023 50% interchangeable

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

Prerequisite 84% connected

Previously required; necessary as a preliminary to any proposed effect or end; as, prerequisite conditions of success.

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.

See also 2

Necessary 66% connected

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

oewn 2023 0% interchangeable

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

Necessary 66% connected

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

oewn 2023 0% interchangeable

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

Antonym 2

Optional 94% connected

Involving an option; depending on the exercise of an option; left to one's discretion or choice; not compulsory; as, optional studies; it is optional…

oewn 2023 0% interchangeable

Open English WordNet records these words as lexical opposites.

Optional 94% connected

Involving an option; depending on the exercise of an option; left to one's discretion or choice; not compulsory; as, optional studies; it is optional…

oewn 2023 0% interchangeable

Open English WordNet records these words as lexical opposites.

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Words connected by meaning

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