/ Dictionary / Index D doomsdayer: Meaning and Definition of Find definitions for: dooms•day•er Pronunciation: (dmz'dā"ur), [key] — n. a doomsayer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Doomsday Book* doomsman Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language