sleazy
crooked as a barrel of snakes
unfaithful
untrustworthily
slippery
shady
tricky
untrustworthiness
trustless
nontrustworthy
unfaithfully
dirty
shoddy
undependably
unreliably
sordid
slick
untrustingly
untrustiness
untrustable
undependable
unreliable
unsellability
untrue
unrespectable
sheisty
transparent
guileless
unscrupulousness
corruptness
disgracefulness
shamefulness
ignominiousness
untrustworthy
corruption
genuineness
legitimacy
authenticity
shiftless
implied trust
orphan work
honor among thieves
iffy
unscrutableness
sleveen
fly-by-night
unveracity
trusty dusty
unappreciatively
ungratefully