impassible

not feeling or showing emotion years of living behind bars had rendered him impassible Synonyms affectless, apathetic, cold-blooded, emotionless, impassive, numb, passionless, phlegmatic, stoic (or stoical), stolid, undemonstrative, unemotionalRelated Words cold, cool, dispassionate, unmoved; calm, collected, composed; imperturbable, unflappable; reserved, reticent, taciturn; bland, blank, deadpan, dry, empty, expressionless, inexpressive, stone-faced, straight-faced, vacant, wooden; enigmatic (also enigmatical), impenetrable, inscrutable; aloof, bloodless, detached, indifferent, insensible, unconcerned, unsentimental; impersonal, objective, unresponsive; hard-hearted, pitiless, unfeeling; inconsiderate, thoughtlessNear Antonyms blazing, burning, fiery, flaming, glowing, red-hot; ardent, enthusiastic, gung ho, warm-blooded, zealous; gushing, maudlin, mawkish, mushy, sentimental; dramatic, histrionic, melodramatic, overemotional, overheated, perfervid; compassionate, responsive, sympathetic; reactive, sensitiveAntonyms demonstrative, emotional, fervent, fervid, hot-blooded, impassioned, passional, passionate, vehement