(a.) Having no desire or inclination; indifferent; heedless; spiritless\.

Laodicean Olympian aloof anemic apathetic asthenic ataractic benumbed blah blase bloodless bored careless casual chicken comatose cool cowardly dead debilitated desensitized detached devil-may-care disinterested dispassionate disregardful distant dopey dormant drooping droopy drugged dull easygoing effete enervated etiolated exanimate faint faintish feeble flabby flaccid floppy gone gutless heartless heavy hebetudinous heedless hopeless imbecile impassive impotent in a stupor inanimate inattentive incurious indifferent inert inexcitable insouciant jaded lackadaisical languid languishing languorous leaden lethargic lifeless limber limp lukewarm lumpish lustless marrowless mindless moribund negligent nerveless nonchalant numb numbed passive perfunctory phlegmatic pithless pluckless pococurante pooped powerless reckless regardless resigned rubbery sapless sated sinewless slack sleepy slow sluggish soft somnolent soporific spent spineless spiritless spunkless stagnant stagnating stoic stolid strengthless stultified stupefied supine tepid thoughtless torpid turned-off unanxious uncaring unconcerned undiscriminating unemotional unenthusiastic unhardened uninquiring uninterested uninvolved unmindful unnerved unsolicitous unstrung vegetable vegetative wan weak weakly weary withdrawn world-weary