underperform

verb

un·​der·​per·​form ˌən-dər-pər-ˈfȯrm 

-pə-ˈfȯrm

underperformed; underperforming; underperforms

transitive verb

: to do worse than

… it believes the company will underperform other relatives covered by the firm …

—Jim Milliot

intransitive verb

: to fail to do as well as expected

The stocks underperformed.

underperformance

ˌən-dər-pər-ˈfȯr-mən(t)s 

-pə-ˈfȯr-

noun

underperformer noun

Examples of underperform in a Sentence

The report shows which schools are underperforming.

Recent Examples on the Web

Big Tech stocks have been underperforming for months due to concerns about ballooning spending on artificial intelligence and a rotation into sectors that tend to do well in an expanding economy. —Bloomberg, Mercury News, 6 Mar. 2026

This includes a live-action take on Tangled, which is back in active development after THR reported last year that the film’s progress had been paused in light of Rachel Zegler and Gal Gadot’s live-action Snow White underperforming at the box office. —Ryan Gajewski, HollywoodReporter, 6 Mar. 2026

Munis underperformed by more than 400 basis points last April, and have been slowly climbing back, Close said. —Michelle Fox, CNBC, 6 Mar. 2026

The record underperformed and the blogs moved on. —Brian Howe, Pitchfork, 6 Mar. 2026

Word History

First Known Use

1971, in the meaning defined at transitive sense

Rhymes for underperform

• cuneiform
• iodoform
• nonuniform
• brainstorm
• conform
• deform
• firestorm
• hailstorm
• inform
• landform
• lukewarm
• perform