The story
From underachieve + -er or under- + achiever.
First known use, by meaning
- from 1950s One who underachieves, i.e. performs less well than expected.
Etymology from Wiktionary, CC BY-SA 4.0.
underachiever
Today it means: One who underachieves, i.e. performs less well than expected. Full definition →
First used 1950s