CIRCADIAN

Yes, CIRCADIAN is a Scrabble word!

Letter values in Scrabble US: C 3, I 1, R 1, C 3, A 1, D 2, I 1, A 1, N 1.C 3 · I 1 · R 1 · C 3 · A 1 · D 2 · I 1 · A 1 · N 1

Is it a valid word?

• Scrabble US: valid, 14 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 14 points
• Scrabble UK: valid, 14 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 14 points
• Words with Friends: valid, 17 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 17 points