NUMBSKULL

Yes, NUMBSKULL is a Scrabble word!

Letter values in Scrabble US: N 1, U 1, M 3, B 3, S 1, K 5, U 1, L 1, L 1.N 1 · U 1 · M 3 · B 3 · S 1 · K 5 · U 1 · L 1 · L 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, 24 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 24 points