Synonyms of unable in English:

unable


See US English definition of unable

See UK English definition of unable

adjective

1‘he was unable to account for the error’

SYNONYMS
not able, powerless, impotent, not equal to, not up to, at a loss, inadequate, ineffectual, incompetent, unfit, unfitted, unqualified
incapable of
literary impuissant
ANTONYMS

able, capable