/ Dictionary / Index B bad apple: Meaning and Definition of Find definitions for: bad' ap'ple Pronunciation: [key] — Informal. Informal. a discontented, troublemaking, or dishonest person: In any group of average citizens there are bound to be a few bad apples. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Badalona Badarian Related Content Daily Word Quiz: knead Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language