unconscientious

corrupt crafty crooked deceitful dishonest illegal petty ruthless selfish shady shameless underhanded unethical venal

arrant base casuistic conscienceless degraded degrading disgraceful dishonorable down and dirty exploitative improper low-down mercenary perfidious questionable recreant scandalous scheming self-seeking shifty sinister slippery sly two-faced unconscionable underhand unfair unprincipled unworthy wicked wrongful

aboveboard decent ethical fair frank good honest honorable kind lawful moral open principled right trustworthy truthful upright

scrupulous