/ Dictionary / Index P plaguesome: Meaning and Definition of Find definitions for: plague•some Pronunciation: (plāg'sum), [key] — adj. vexatious or troublesome. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. plague plaguy Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language