(a.) Void of passion; without anger or emotion; not easily excited; calm.

affectless anesthetized apathetic arctic autistic blunt catatonic chill chilly cold cold as charity cold-blooded coldhearted cool desireless detached dispassionate drugged dull emotionally dead emotionless frigid frosted frosty frozen heartless icy immovable impassible impassive inappetent indifferent inexcitable inhibited insusceptible loveless nirvanic nonemotional objective obtuse out of touch self-absorbed soulless spiritless unaffected unaffectionate unambitious unaspiring unattracted uncaring unconcerned undersexed undesirous uneager unemotional unenthusiastic unfeeling unimpassioned unimpressionable unloving unmoved unpassionate unresponding unresponsive unsusceptible unsympathetic untouchable