Not easily excited to action or passion; cold; dull; sluggish; heavy; as, a phlegmatic person.

having or suggesting a calm, sluggish temperament; unemotional; slow to action or concern

One of the four temperaments, associated with the element of water. The phlegmatic personality indicates a withdrawn, sensitive, emotional, somewhat unstable temperament prone to moodiness and self-protective behavior.

Galenical ( Q.V.) State Related To Phlegm ( Q.V.).

Watery.

Abounding in phlegm; as, phlegmatic humors; a phlegmatic constitution.

Generating or causing phlegm.