undermine
— Verb
– English
~ destroy property or hinder normal operations; "The Resistance sabotaged railroad operations during the war"
underneath
— Adverb
– English
~ on the lower or downward side; on the underside of; "a chest of drawers all scratched underneath"
underneath
— Adverb
– English
~ under or below an object or a surface; at a lower place or level; directly beneath; "we could see the original painting underneath"; "a house with a good foundation underneath"
undernourish
— Verb
– English
~ provide with insufficient quality or quantity of nourishment; "The stunted growth of these children shows that they are undernourished"
undernourished
— Adjective
– English
~ not getting adequate food; "gaunt underfed children"; "badly undernourished"
undernourishment
— Noun
– English
~ not having enough food to develop or function normally
underpants
— Noun
– English
~ an undergarment that covers the body from the waist no further than to the thighs; usually worn next to the skin
underpart
— Noun
– English
~ a part lying on the lower side or underneath an animal's body; "the warbler has a white throat and underparts"; "a woodland mouse with white underparts"
underpass
— Noun
– English
~ an underground tunnel or passage enabling pedestrians to cross a road or railway
underpayment
— Noun
– English
~ the act of paying less than required
underpayment
— Noun
– English
~ a payment smaller than needed or expected
underperform
— Verb
– English
~ perform too rarely; "Her plays are underperformed, although they are very good"
underperform
— Verb
– English
~ perform less well or with less success than expected; "John consistently underachieves, although he is very able"; "My stocks underperformed last year"
underperformer
— Noun
– English
~ a business that is less successful than expected
underperformer
— Noun
– English
~ a student who does not perform as well as expected or as well as the IQ indicates