Antonyms of noun overachievement

1 sense of overachievement

Sense 1
overachievement -- (better than expected performance (better than might have been predicted from intelligence tests))
       Antonym of underachievement (Sense 1)
      => underachievement -- (poorer than expected performance (poorer than might have been predicted from intelligence tests))

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun overachievement

1 sense of overachievement

Sense 1
overachievement -- (better than expected performance (better than might have been predicted from intelligence tests))
       => performance -- (any recognized accomplishment; "they admired his performance under stress"; "when Roger Maris powered four home runs in one game his performance merits awe")