underperform

Verb

underperform (third-person singular simple present underperforms, present participle underperforming, simple past and past participle underperformed)

1. (ambitransitive) To underachieve; to fail to reach standards or expectations, especially with respect to a financial investment.
   • Even outside the Anglo-Saxon world, underperforming public companies have become vulnerable to hostile takeover.2002, Robert M. Grant, Contemporary Strategy Analysis: Concepts, Techniques, Applications, page 40
   • She inhabits the prose’s terrible serenity and glacial horror — the translator’s hand never overwhelms or underperforms.2016 February 2, Porochista Khakpour, “‘The Vegetarian,’ by Han Kang”, in The New York Times