Englishunemotional
adjective
professionals should remain detached and unemotional:
reserved, controlled, undemonstrative, restrained, self-controlled, impersonal, clinical, passionless, emotionless, cold, frigid, cool, calm, composed, collected, cool, calm, and collected, cool-headed, level-headed, hard-headed, businesslike, rational, sober, unsentimental, unfeeling, unresponsive, unexcitable, unmoved, unagitated, unruffled, serene, impassive, tranquil, indifferent, apathetic, phlegmatic, stoical, equable, detached, distant, remote, aloof, disinterested, unconcerned.
▷antonyms emotional, expressive.
unemotional Oxford Dictionary of English