verb (used with or without object)

to perform less well than (another of its kind, a general average, etc.) or less well than expected: Surprisingly, the stock has underperformed the market indexes all year. Several of our best players consistently underperform.

Origin of underperform

Related formsun·der·per·for·mance, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for underperformance

Contemporary Examples of underperformance

  • Over-optimistic forecasts, coupled with underperformance, have long been a GM bugaboo.

    The Daily Beast logo
    Behind GM's Shock Shakeup

    Paul Ingrassia

    December 1, 2009