Synonyms and related words :
affectless, anesthetized, arctic, autistic, blunt, catatonic, changeless, chill, chilly, closed to, cold, cold as charity, cold-blooded, coldhearted, constant, cool, dispassionate, drugged, dull, emotionally dead, emotionless, frigid, frosted, frosty, frozen, heartless, icy, immovable, immutable, impassible, impassive, impersuadable, impersuasible, impervious, incommutable, inconvertible, indefeasible, inert, inexcitable, inflexible, insensitive, insentient, insusceptible, insusceptible of change, intransmutable, invariable, irretrievable, irreversible, irrevocable, lasting, noble, nonemotional, nonreturnable, nonreversible, objective, obstinate, obtuse, out of touch, passionless, permanent, reverseless, self-absorbed, soulless, spiritless, unaffectionate, unalterable, unalterative, unaltered, unamenable, unchangeable, unchanged, unchanging, undeflectable, undeviating, unemotional, unfeeling, unimpassioned, unimpressible, unimpressionable, uninfluenceable, unloving, unmodifiable, unmovable, unpassionate, unpersuadable, unpliable, unreceptive, unremitting, unresponding, unresponsive, unrestorable, unreturnable, unsuggestible, unswayable, unsympathetic, untouchable, unvariable, unvarying, unyielding