lameEnglishOxford American Thesauruslame adjective 1 the mare went lame: limping, hobbling; incapacitated, debilitated, infirm, deformed, maimed; informal gammy; archaic halt, game. ▷antonyms able-bodied. 2 a lame excuse: feeble, weak, thin, flimsy, transparent, poor, puny; unconvincing, implausible, unlikely, hollow, hard to believe; informal pathetic, half-baked, hard to swallow. ▷antonyms convincing, persuasive.