1 barbarian, beast, bogeyman, brute, demon, devil, fiend, ghoul, ogre, savage, villain
2 abortion, freak, lusus naturae, miscreation, monstrosity, mutant, teratism
3 behemoth, Brobdingnagian, colossus, giant, leviathan, mammoth, titan
4 Brobdingnagian, colossal, elephantine, enormous, gargantuan, giant, gigantic, ginormous (informal) huge, humongous or humungous (U.S. slang) immense, jumbo (informal) mammoth, massive, mega (slang) monstrous, stellar (informal) stupendous, titanic, tremendous
English Collins Dictionary - English synonyms & Thesaurus
monster ( monsters plural )
1 n-count A monster is a large imaginary creature that looks very ugly and frightening.
2 n-count A monster is something which is extremely large, especially something which is difficult to manage or which is unpleasant.
...the monster which is now the London marathon.
3 adj Monster means extremely and surprisingly large.
INFORMAL ADJ n (emphasis)
The film will be a monster hit.
4 n-count If you describe someone as a monster, you mean that they are cruel, frightening, or evil.
Translation English Cobuild Collins Dictionary
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