2 entries under this word

Underdo

Un'der-dō', v. i.

verbintransitive

[imp. UNDERDID; p. p. UNDER-DONE; p. pr. & vb. n. UNDERDOING.]

  1. To act below one's abilities. B. Jonson.
  2. To do less than is requisite. Grew.

Un'der-dō', v. t.

verbtransitive

v. t. To do less than is requisite; to cook insufficiently; as, the beef was underdone.