Lacking integrity or moral rectitude; characterized by this; not acting in accordance with what is morally right or just; wicked, sinful…

That practises or is given to theft or extortion; thieving; dishonest. Obsolete.

Dishonest (in respect of dealings with others). Of persons.

Characterized by deceit; false, underhand.

Of an action, practice, etc.: dishonest, unfair; underhand; = sinister, adj. 3. Obsolete.

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

attributive. Such as is used in a horse-fair: dishonest, equivocating.

(under-, prefix1 affix 5(c).)

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

Looking askance; oblique, indirect; sly, underhand.

Of persons: Wanting in honesty, probity, or integrity; disposed to cheat or defraud; thievish.

slang. Dishonest; dishonestly come by. (Opposed to square or straight.) Cf. crooked, adj. 3b, and cross, n. 29.

U.S. slang. Dishonest, faithless. Obsolete.

Australian and New Zealand. Dishonest, unscrupulous, ‘crooked’.