underdo
/ˈʌndərˌdoʊ/Definitions
1. verb
to perform or achieve something less well or to a lesser extent than expected or desired; to fail to meet a requirement or standard.
“The team struggled to find the right strategy and ended up underdoing the task, missing the deadline.”
2. noun
an act or instance of underperforming or achieving less than expected.
“The company’s underdo in the market led to a significant loss in revenue.”