PERFIDIOUS

Yes, PERFIDIOUS is a Scrabble word!

Letter values in Scrabble US: P 3, E 1, R 1, F 4, I 1, D 2, I 1, O 1, U 1, S 1.P 3 · E 1 · R 1 · F 4 · I 1 · D 2 · I 1 · O 1 · U 1 · S 1

Is it a valid word?

• Scrabble US: valid, 16 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 16 points
• Scrabble UK: valid, 16 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 16 points
• Words with Friends: valid, 18 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 18 points