UNDERPERFORM
underperform
(verb) perform too rarely; “Her plays are underperformed, although they are very good”
underachieve, underperform
(verb) perform less well or with less success than expected; “John consistently underachieves, although he is very able”; “My stocks underperformed last year”
Source: WordNet® 3.1
Etymology
Verb
underperform (third-person singular simple present underperforms, present participle underperforming, simple past and past participle underperformed)
To underachieve, to not reach standards or expectations, especially with respect to a financial investment.
Antonyms
• overperform
Source: Wiktionary