MASTERFULLY

Yes, MASTERFULLY is a Scrabble word!

Letter values in Scrabble US: M 3, A 1, S 1, T 1, E 1, R 1, F 4, U 1, L 1, L 1, Y 4.M 3 · A 1 · S 1 · T 1 · E 1 · R 1 · F 4 · U 1 · L 1 · L 1 · Y 4

Is it a valid word?

• Scrabble US: valid, 19 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 19 points
• Scrabble UK: valid, 19 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 19 points
• Words with Friends: valid, 22 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 22 points