IPA: /ɡroʊˈtɛsknəs/
KK: /groʊˈtɛsknəs/
The quality or state of being strange, unnatural, or exaggerated in appearance or character.
The grotesqueness of the sculpture made it both fascinating and disturbing to viewers.
Grotesqueness is formed from "grotesque" (from Italian "grottesco", meaning of a cave or cavern) and the suffix "-ness" (meaning the state or quality of). The word refers to the quality of being grotesque, which often implies something that is bizarre or unnatural in appearance.
Think of the word 'grotesque' which describes something strange or unnatural, and remember that 'grotesqueness' refers to the state of being strange or bizarre.
No commonly confused words.