9 letters · 11 points in Scrabble
adjective abnormally large
adjective shockingly brutal or cruel
adjective distorted and unnatural in shape or size; abnormal and hideous
originFrom Middle English monstrous, from Old French monstrueuse, monstrüos, from Latin mōnstrōsus. Compare monstruous. By surface analysis, monster + -ous.
Etymology from Wiktionary, CC BY-SA 3.0