/ Dictionary / Index U ugly duckling: Meaning and Definition of Find definitions for: ug'ly duck'ling Pronunciation: [key] an unattractive or unpromising child who becomes a beautiful or much-admired adult. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ugly customer Ugrian Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language