/ Dictionary / Index P peccadillo: Meaning and Definition of Find definitions for: pec•ca•dil•lo Pronunciation: (pek"u-dil'ō), [key] — pl. -loes, -los. a very minor or slight sin or offense; a trifling fault. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: peccadillo (Thesaurus) peccable peccant Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language