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OATunable

unable

Flag: gbEnglishOxford American Thesaurus

unable
adjective
he was unable to account for the error:
not able, powerless, impotent, not up/equal to, at a loss, inadequate, ineffectual, incompetent, unfit, unfitted, unqualified;
incapable of;
literary impuissant.
antonyms able, capable.