GAINFULNESS

Yes, GAINFULNESS is a Scrabble word!

Letter values in Scrabble US: G 2, A 1, I 1, N 1, F 4, U 1, L 1, N 1, E 1, S 1, S 1.G 2 · A 1 · I 1 · N 1 · F 4 · U 1 · L 1 · N 1 · E 1 · S 1 · S 1

Is it a valid word?

• Scrabble US: valid, 15 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 15 points
• Scrabble UK: valid, 15 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 15 points
• Words with Friends: valid, 20 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 20 points