INVALIDISMS

Yes, INVALIDISMS is a Scrabble word!

Letter values in Scrabble US: I 1, N 1, V 4, A 1, L 1, I 1, D 2, I 1, S 1, M 3, S 1.I 1 · N 1 · V 4 · A 1 · L 1 · I 1 · D 2 · I 1 · S 1 · M 3 · S 1

Is it a valid word?

• Scrabble US: valid, 17 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 17 points
• Scrabble UK: valid, 17 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 17 points
• Words with Friends: valid, 21 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 21 points