• (v. t.) To do like work at a less price than; as, one mason may underwork another. • (n.) Inferior or subordinate work; petty business. • (v. i.) To do work for a less price than current rates. • (v. i.) To work or operate in secret or clandestinely. • (v. i.) To do less work than is proper or suitable. • (v. t.) To ...