The Seuss Villain is the Grinch, a 6-letter word. The Grinch is a fictional character created by Dr. Seuss in his 1957 children's book 'How the Grinch Stole Christmas!' He is a green, furry creature who lives in a cave atop a mountain and despises Christmas. He attempts to ruin the holiday for the people of Whoville, but eventually learns the true meaning of Christmas and has a change of heart.