underachiever
2 synonyms for underachiever, grouped by meaning and by how common each one is.
Noun — Someone who does not do as well as they are able to.
Synonyms
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
underperformer
nonachiever
Etymology
Formed from underachieve and -er, or from under- and achiever.
Full origin of underachiever →