Synonyms of underhand in English:

underhand


See definition of underhand

adjective

1‘he was accused of employing underhand tactics’

SYNONYMS

deceitful, underhanded, dishonest, dishonourable, disreputable, unethical, unprincipled, immoral, unscrupulous, fraudulent, cheating, dubious, dirty, unfair, treacherous, duplicitous, double-dealing, below the belt, two-timing, two-faced, Janus-faced, unsporting, unsportsmanlike

devious, calculating, artful, crafty, cunning, conniving, scheming, designing, sly, wily, guileful, tricky

criminal, illegal, unlawful, nefarious

secret, secretive, clandestine, surreptitious, sneaky, sneaking, furtive, covert, veiled, shrouded, cloak-and-dagger, hugger-mugger, hole-and-corner, hidden, back-alley, backstairs, under the table, conspiratorial

North American snide, snidey

informal crooked, shady, bent, low-down, murky, fishy

British informal dodgy

NZ Australian informal shonky

South African informal slim

ANTONYMS

honest, fair, above board