UNDERDO
Un`der*do", v. i.

Defn: To do less than is requisite or proper; — opposed to overdo.
Grew.

UNDERDO
Un`der*do", v. t.

Defn: To do less thoroughly than is requisite; specifically, to cook insufficiently; as, to underdo the meat; — opposed to overdo.

UNDERDOER
Un"der*do`er, n.

Defn: One who underdoes; a shirk.

UNDERDOLVEN
Un`der*dolv"en, obs.

Defn: p. p. of Underdelve.

UNDERDOSE
Un"der*dose`, n.

Defn: A dose which is less than required; a small or insufficient dose.