underhand
adjective
• acting or done in a secret or dishonest way.
• "underhand dealings"
Similar:
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,
snide,
snidey,
crooked,
shady,
bent,
low-down,
murky,
fishy,
dodgy,
shonky,
slim,
• another term for underarm.
• "underhand bowling"
Origin:
Old English in the sense ‘in or into subjection, under control’ (see under-, hand).