underperform
verb
un·der·per·form
ˌən-dər-pər-ˈfȯrm 
-pə-ˈfȯrm
underperformed; underperforming; underperforms
: to do worse than
… it believes the company will underperform other relatives covered by the firm …—
Jim Milliot
Jim Milliot
: to fail to do as well as expected
The stocks underperformed.
underperformer
noun
Examples of underperform in a Sentence
The report shows which schools are underperforming.
Recent Examples on the Web
Why are the Heat not firing a coach that is seriously underperforming?
—Ira Winderman, Sun Sentinel, 9 Apr. 2026
But the city also lost an undisclosed number of ostensibly underperforming stores last fall as part of the same restructuring.
—Robert Channick, Chicago Tribune, 9 Apr. 2026
Shares have fallen 16% in the year to date, underperforming the overall market.
—Liz Napolitano, CNBC, 9 Apr. 2026
Either the sun was underperforming expectations, or neutrinos were going missing.
—Quanta Magazine, 8 Apr. 2026
See All Example Sentences for underperform
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Ira Winderman, Sun Sentinel, 9 Apr. 2026
But the city also lost an undisclosed number of ostensibly underperforming stores last fall as part of the same restructuring.
—Robert Channick, Chicago Tribune, 9 Apr. 2026
Shares have fallen 16% in the year to date, underperforming the overall market.
—Liz Napolitano, CNBC, 9 Apr. 2026
Either the sun was underperforming expectations, or neutrinos were going missing.
—Quanta Magazine, 8 Apr. 2026
See All Example Sentences for underperform
Cite this Entry
“Underperform.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underperform. Accessed 16 Apr. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
