impassive, apathetic, callous, cold, dispassionate, dry,
emotionless, hardened, heartless, indifferent, inexcitable,
inexpressive, inscrutable, insusceptible, nonchalant, passionless,
reserved, sedate, self-contained, stoic, stoical, unconcerned,
unemotional, unexcitable, unfeeling, unimpressible, unmoved,