(a.) Not passionate; dispassionate.

affectless arctic asleep autistic benumbed blunt cataleptic catatonic chill chilly cold cold as charity cold-blooded coldhearted comatose cool dead deadened dispassionate doped dozy dreamy drowsy drugged drugged with sleep dull emotionally dead emotionless frigid frosted frosty frozen half asleep heartless heavy heavy with sleep heavy-eyed icy immovable impassible impassive in a stupor inexcitable insensible insensitive insusceptible languid lethargic napping narcoleptic narcose narcotized narcous nodding nonemotional numbed objective obtuse oscitant out of it out of touch passionless sedated self-absorbed senseless sleep-drowned sleep-drunk sleep-filled sleep-swollen sleepful sleepy slumberous slumbery snoozy somnolent soporific soulless spiritless stretchy stuporose stuporous unaffectionate unemotional unfeeling unimpassioned unimpressionable unloving unpassionate unresponding unresponsive unsusceptible unsympathetic untouchable yawning yawny