underachiever

[ uhn-der-uh-chee-ver ]
See synonyms for underachiever on Thesaurus.com
noun
  1. a student who performs less well in school than would be expected on the basis of abilities indicated by intelligence and aptitude tests, etc.

  2. a person or thing that performs below expectations.

Origin of underachiever

1
1945–50; under- + achiever

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024