lickpot
rapscallion
scallywag
scalawag
rogue
knave
varlet
rascal
sleazy
sleveen
impenetrable
untrustworthily
crooked as a barrel of snakes
booky
untrustingly
unphilanthropically
unpraiseworthily
sysape
nontrustworthy
unitively
rat bastard
unenlightenedly
aneugen
shady
unworthily
uncommunicably
unsanctifiedly
unwarily
slick
inconscionably
unimpassionedly
unfestively
dunce
ghost
unloyally
unlistenably
unvarnishedly
unhandsomely
unclerically
unconceitedly
unhonourably
unpunishingly
unpardonably
unthankfully
uninnocently
dull
unsanctimoniously
univocal
sievish
unavoidably