Simple Definition of ugly duckling
: a person or thing that is not attractive or successful but that is likely to become attractive or successful in the future
Full Definition of ugly duckling
: one that appears very unpromising but often has great potential
Examples of ugly duckling in a sentence
The house is an ugly duckling, but it has a lot of potential.
Origin of ugly duckling
The Ugly Duckling, story by Hans Christian Andersen
First Known Use: 1869
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