nervelessEnglishOxford English Thesaurusnerveless adjective 1 he took the gun from her suddenly nerveless fingers: inert, lifeless, lacking feeling; weak, powerless, feeble. 2 a nerveless lack of restraint: confident, self-confident, self-assured, self-possessed, cool, cool-headed, calm, collected, cool, calm, and collected, composed, controlled, relaxed. ▷antonyms nervous, worried, anxious.nerveless Oxford Dictionary of English