noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A greater than anticipated achievement. countable, uncountable
2. 2
   better than expected performance (better than might have been predicted from intelligence tests) wordnet

Antonyms

All antonyms

underachievement

Etymology

From over- + achievement.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.