We found one dictionary that defines the word mythical monsters:

General (1 matching dictionary)

1. mythical monsters: Vocabulary.com

(Note: See mythical_monster as well.)

Definitions from WordNet (mythical monster) ▸ noun:  a monster renowned in folklore and myth ▸ Also see mythical_monster ▸ Words similar to mythical monsters ▸ Usage examples for mythical monsters ▸ Idioms related to mythical monsters ▸ Wikipedia articles (New!) ▸ Words that often appear near mythical monsters ▸ Rhymes of mythical monsters ▸ Invented words related to mythical monsters