Synonyms and related words :
Olympian, actual, aloof, aseptic, backward, bashful, blank, chill, chilled, chilly, cold, constrained, cool, detached, discreet, distant, emotionless, expressionless, forbidding, frigid, frosty, glacial, guarded, icy, impassive, impersonal, inaccessible, incontestable, incontrovertible, indifferent, indisputable, indubitable, introverted, modest, offish, real, remote, removed, repressed, reserved, restrained, reticent, retiring, shrinking, standoff, standoffish, subdued, suppressed, TRUE, unaffable, unapproachable, uncongenial, uncontestable, undeniable, unemotional, unequivocal, unexpansive, ungenial, uninterested, unquestionable, veridical, withdrawn