/ Dictionary / Index P phlegmatic: Meaning and Definition of Find definitions for: phleg•mat•ic Pronunciation: (fleg-mat'ik), [key] — adj. not easily excited to action or display of emotion; apathetic; sluggish. self-possessed, calm, or composed. of the nature of or abounding in the humor phlegm. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: phlegmatic (Thesaurus) phlegm phlegmy Related Content Daily Word Quiz: banshee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language