The meaning of UNABLE is not able : incapable. How to use unable in a sentence.

(Definition of unable from the Cambridge Academic Content Dictionary © Cambridge University Press)

lacking the necessary power, competence, etc., to accomplish some specified act: unable to swim.

Oct 31, 2025 · unable (third-person singular simple present unables, present participle unabling, simple past and past participle unabled) (transitive, nonstandard) To render unable; to disable.

UNABLE definition: lacking the necessary power, competence, etc., to accomplish some specified act. See examples of unable used in a sentence.

WordReference Random House Unabridged Dictionary of American English © 2025 un•a•ble (un ā′ bəl), adj. lacking the necessary power, competence, etc., to accomplish some specified act: …

If you are unable to do something, it is impossible for you to do it, for example because you do not have the necessary skill or knowledge, or because you do not have enough time or money.

Definition of unable adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

unable definition: lacking the skill, means, or opportunity to do something. Check meanings, examples, usage tips, pronunciation, domains, and related words. Discover expressions like …

Definition of unable. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.