"fantastical" in the adjective sense
1. fantastic, fantastical
existing in fancy only
"fantastic figures with bulbous heads the circumference of a bushel"- Nathaniel Hawthorne
2. antic, fantastic, fantastical, grotesque
ludicrously odd
"Hamlet's assumed antic disposition"
"fantastic Halloween costumes"
"a grotesque reflection in the mirror"
Source: WordNet® (An amazing lexical database of English)
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