[adj] speaking or behaving in an artificial way to make an impression
[adj] 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"
[adj] not in accordance with or determined by nature; contrary to nature; "an unnatural death"; "the child's unnatural interest in death"
Synonyms
affected, agonistic, artificial, constrained, contrived, eerie, eery, elocutionary, forced, grotesque, mannered, monstrous, plummy, spooky, stilted, strained, ugly, uncanny, unco, violent