Word Type

Adjective

Adjective

Noun

The word "incapable" can be used as adjective, adjective and noun.

Word Relationships

Opposites (Antonyms)

capable capable

Derived Terms

incapability incapableness incapably

Derived From

capable

Related Terms

incapacitate incapacitation

Related Terms

ability able being being unable cannot cannot do capability capable capacious capacity do handicapped imbecile inability incapacitate incapacitation incapacity incompetent simpleton state unable

Similar Terms

inadequate incompetent insusceptible unable unable unequal unsusceptible unsusceptible

Synonym Network

refusing unable unequal to

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.