/ Dictionary / Index D dubiosity: Meaning and Definition of Find definitions for: du•bi•os•i•ty Pronunciation: (d"bē-os'i-tē, dy"-), [key] — pl. -ties. dubiety. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Dubinsky dubious Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language