1. underperformer(n = noun.person) nonachiever, underachiever - a student who does not perform as well as expected or as well as the IQ indicates; Array
is a kind of educatee, pupil, student
Derived form verb underperform1
2. underperformer(n = noun.group) Array - a business that is less successful than expected; Array
is a kind of business, business concern, business organisation, business organization, concern
Derived form verb underperform1