grotesque
noun
art characterized by an incongruous mixture of parts of humans and animals interwoven with plants
adjective
distorted and unnatural in shape or size; abnormal and hideous
“tales of grotesque serpents eight fathoms long that churned the seas”
“twisted into monstrous shapes”
Synonymsmonstrousludicrously odd
“Hamlet's assumed antic disposition”
“fantastic Halloween costumes”
Source: WordNet 3.1, Princeton University