underachieve

verb

achieve less than some benchmark

Wiktionary

Pronunciation: /ˌʌndə(ɹ)əˈt͡ʃiːv/

verb

Etymology: Etymology tree Proto-Indo-European *h₁én Proto-Indo-European *h₁entér Proto-Indo-European *(H)n̥dʰí Proto-Indo-European *-ér Proto-Indo-European *(H)n̥dʰér Proto-Germanic *under Proto-West Germanic *undar Old English under- Middle English under- English under- English achieve English underachieve From under- + achieve.

To achieve less than expected; to fail to fulfil one's potential.