Bulletproof: alternatives and connections

Clad with armor.

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

Clad with armor.

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

Not contestable; not to be disputed; that cannot be called in question or controverted; incontrovertible; indisputable; as, incontestable evidence, t…

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

Not contestable; not to be disputed; that cannot be called in question or controverted; incontrovertible; indisputable; as, incontestable evidence, t…

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

Any effort, process, or operation designed to establish or discover a fact or truth; an act of testing; a test; a trial.

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

Clad in iron; protected or covered with iron, as a vessel for naval warfare.

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.

Not capable of being shaken; firm; fixed.

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.