knavish
adjective
[ ˈneɪvɪʃ ]
• dishonest or unscrupulous.
• "his knavish tricks will be frustrated"
Similar:
dishonourable,
unprincipled,
unscrupulous,
ignoble,
untrustworthy,
roguish,
rascally,
scoundrelly,
mischievous,
reprobate,
unregenerate,
villainous,
wicked,
depraved,
bad,
immoral,
fiendish,
devilish,
dishonest,
deceitful,
fraudulent,
corrupt,
lying,
deceptive,
base,
contemptible,
despicable,
discreditable,
shabby,
shady,
crooked,
scurvy,
dastardly,