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
The problem is not that Los Angeles cares too little about education; the problem is the unmanageable and underperforming bureaucracy to which delivering education has been entrusted.
—Daniel L Gordon, Daily News, 29 Mar. 2026
Of late, its fortunes have reversed, with GE underperforming its Industry Group (Aerospace), underperforming its Sector (Industrials) and underperforming the market (S & P 500 Index).
—Carter Braxton Worth, CNBC, 27 Mar. 2026
Since then, based both on the number of ballots cast and voting percentages, Republican presidential candidates have regularly underperformed Lake County Republicans running for countywide positions on the same ballot.
—Joseph States, Chicago Tribune, 27 Mar. 2026
Helping the market get its head around AI The AI mood swing that left LSEG’s shares underperforming the FTSE-100 challenged the core of Schwimmer’s strategy.
—Andrew Edgecliffe-Johnson, semafor.com, 27 Mar. 2026
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Daniel L Gordon, Daily News, 29 Mar. 2026
Of late, its fortunes have reversed, with GE underperforming its Industry Group (Aerospace), underperforming its Sector (Industrials) and underperforming the market (S & P 500 Index).
—Carter Braxton Worth, CNBC, 27 Mar. 2026
Since then, based both on the number of ballots cast and voting percentages, Republican presidential candidates have regularly underperformed Lake County Republicans running for countywide positions on the same ballot.
—Joseph States, Chicago Tribune, 27 Mar. 2026
Helping the market get its head around AI The AI mood swing that left LSEG’s shares underperforming the FTSE-100 challenged the core of Schwimmer’s strategy.
—Andrew Edgecliffe-Johnson, semafor.com, 27 Mar. 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 2 Apr. 2026.
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