left-handedEnglishOxford American Thesaurusleft-handed adjective 1 a left-handed golfer: sinistral; informal southpaw. ▷antonyms right-handed. 2 a left-handed compliment: backhanded, ambiguous, equivocal, uncertain, double-meaning, double-edged; dubious, indirect, enigmatic, cryptic, paradoxical, ironic, sardonic, insincere, hypocritical. ▷antonyms forthright.