/ Thesaurus / L Synonyms of lusus naturae Find synonyms for: Noun1. freak, monster, monstrosity, lusus naturae, mutant, mutation, variation, sportusage: a person or animal that is markedly unusual or deformedWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language