1. (a.) Not easily excited to action; cold; dull; sluggish; having the nature of phlegm; as, a phlegmatic person\.

2. (a.) Abounding in phlegm; as, phlegmatic humors; a phlegmatic constitution.

3. (a.) Generating or causing phlegm.

Laodicean Olympian abeyant aloof ambivert apathetic benumbed blah blase bored calm careless cataleptic catatonic choleric cold comatose composed controlled cool cycloid cyclothyme cyclothymic dead debilitated desensitized detached disinterested distant dopey dormant droopy drugged dry dull ectomorph endomorph enervated equanimous even-tempered exanimate extrovert flat foul groggy heartless heavy hebetudinous heedless hopeless impassive imperturbable in a stupor in abeyance in suspense inactive inanimate incurious indifferent indolent inert insensible insensitive insouciant introvert jaded lackadaisical languid languorous latent leaden lethargic lifeless listless logy lumpish matter-of-fact melancholic mesomorph mindless moderate moribund nonchalant numb numbed passive philosophical placid pluckless pooped regardless resigned restrained sanguine sated schizoid schizothyme sedentary self-controlled self-possessed serene slack sleeping sleepy slow sluggish slumbering smoldering somnolent soporific spiritless spunkless stagnant stagnating standing static stoic stoical stolid stultified stupefied supine suspended syntone tame temperate torpid tranquil unaffected unanimated unaroused uncaring unconcerned undemonstrative undisturbed unemotional unenthusiastic unfeeling uninquiring uninterested uninvolved unmindful unmoved unperturbed unresponsive unruffled vegetable vegetative wan weary withdrawn world-weary