Characterized by deceit; false, underhand.

Marked or characterized by, partaking or suggestive of, sneaking; hence, mean, contemptible.

Secretive, underhand. Obsolete. rare.

Malicious, dishonest. Cf. sinistrous, adj. I.

Of or belonging to the left hand or left-hand side; (hence) sinister; underhand; inferior or backward. Cf. left hand, n. 2. Now rare.

figurative and in extended use. Characterized by underhand dealings. Obsolete.

Skulking, furtive; mean, cheap, contemptible; poor, obsequious.

Looking askance; oblique, indirect; sly, underhand.

That engages in treacherous and malicious behaviour; underhand, disloyal.

Of persons: Like or resembling a sneak; mean, paltry, sneaking.

Of persons: Not straightforward.

Somewhat sneaky.

= underhand, adj. 2b.

slang (originally U.S.). Usually attributive. Mean and unfair; underhand, cheating.