mercentary

amoral deceitful dishonest immoral unconscionable unethical unprofessional unscrupulous

abandoned bent cheating conscienceless crooked devious dirty dealing dissolute double-crossing double-dealing licentious praetorian profligate reprobate shady sly stop-at-nothing tricky two-faced two-timing underhand venal wanton

ethical frank good honest moral open principled right scrupulous trustworthy truthful upright