Undersailed :: Undersailed (a.) Inadequately equipped with sails.
Undersaturated :: Undersaturated (a.) Not fully saturated; imperfectly saturated.
Undersay :: Undersay (v. t.) To say by way of derogation or contradiction.
Underscore :: Underscore (v. t.) To draw a mark or line under; to underline.
Undersecretary :: Undersecretary (n.) A secretary who is subordinate to the chief secretary; an assistant secretary; as, an undersecretary of the Treasury..
Undersell :: Undersell (v. t.) To sell the same articles at a lower price than; to sell cheaper than.