Dictionary and Thesaurus

Definition of Unable

• (a.) Not able; not having sufficient strength, means, knowledge, skill, or the like; impotent' weak; helpless; incapable; -- now usually followed by an infinitive or an adverbial phrase; as, unable for work; unable to bear fatigue.

Synonyms of Unable

• Ineffective
• Ineffectual

Antonyms of Unable

• Able

Homophones of Unable