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