Description: Faithless, decietful, treacherous
P.O.S: Adjective
Related words: Slick (s), deceptive (s), betraying (s)
Sentence: He was a perfidious lover.

Probity
Description: Integrity, honesty
P.O.S: Noun
Related words: Equity (s), honor (s), worth (s)
Sentence: Her probity let me trust her, so we became the best of friends.

Scrupulous
Description: Careful, Strict
P.O.S: Adjective
Related words: Exact (s), Critical (s), True (s)
Sentence: That was a scrupulous performance.

Spurious
Description: Not true, Not genuine
P.O.S: Adjective
Related words: Bogus (s), Fake (s), False (s)
Sentence: You can get in big trouble if you get caught with spurious money.

Stratagem
Description: Plan, Scheme, Trick
P.O.S: Noun
Related words: Booby trap (s), Game (s), Con (s)
Sentence: We need a stratagem to win the game.