underachiever
0 antonyms and opposites of underachiever, grouped by meaning.
Noun — One who underachieves, i.e. performs less well than expected.
We haven't recorded synonyms for underachiever yet. You can still read its full definition, where it comes from, or words that rhyme with it.
Etymology
From underachieve + -er or under- + achiever.
Full origin of underachiever →