ˌ ̷ ̷ ̷ ̷ ̷ ̷ ˈ ̷ ̷ verb
Etymology: under (I) + perform
transitive verb
: to do worse than : not do as well as
a mutual fund that underperformed the market
intransitive verb
: to fail to do as well as expected
underperform on a test
a stock that underperforms
• underperformance ˌ ̷ ̷ ̷ ̷ ̷ ̷ ˈ ̷ ̷ ̷ ̷ noun
• underperformer ¦ ̷ ̷ ̷ ̷ ̷ ̷ ¦ ̷ ̷ ̷ ̷ noun