7 synonym groups for Monster

generate, produce, create, engender, breed, originate, beget, procreate, reproduce, give rise to, bring forth, yield, bear, issue, birth, form, develop, propagate, hatch, conceive, deliver, manifest, initiate, instigate, trigger, prompt, induce, incite, catalyze, stimulate, arouse, evoke, elicit, precipitate, cause, effect, result in, lead to, occasion, set off, spark, kick off, inaugurate, commence, start, begin, launch, usher in, set in motion [x]

demon, devil, fiend, monster, villain, beast, brute, ogre, savage, wretch, scoundrel, miscreant, evildoer, malefactor, hellion, diabolist, hellhound, incubus, succubus, tormentor, persecutor, adversary, antagonist, nemesis, foe, enemy, bane, scourge, pest, plague, terror, horror, nightmare, abomination, abuser, tyrant, oppressor, despot, dictator, autocrat, sadist, torturer, executioner, butcher, slayer, murderer, assassin, killer, destroyer [x]

enemy, foe, adversary, antagonist, rival, opponent, nemesis, villain, arch-enemy, malefactor, persecutor, tormentor, assailant, attacker, aggressor, invader, combatant, contender, competitor, challenger, hostile, belligerent [x]

boogeyman, specter, phantom, ghost, ghoul, monster, demon, fiend, ogre, bugbear, scarecrow, spook, wraith, apparition, poltergeist, banshee, spirit, haint, hobgoblin, devil, incubus, nightmare, shade, shadow, haunter, frightener, terror, fright, horror, menace, threat, bugaboo, chimera, dread, dreadnought, goblin, harpy, hellion, imp, kelpie, lamia, leprechaun, manticore, revenant, sprite, troll, vampire, werewolf, wight [x]

illusion, fantasy, delusion, mirage, dream, hallucination, figment, phantasm, specter, phantom, vision, apparition, fabrication, invention, creation, concoction, fancy, whimsy, pipe dream, castle in the air, daydream, reverie, flight of fancy, figment of the imagination, wild idea, unattainable idea, unattainable dream, false hope, false belief, false impression, false perception, self-deception, wishful thinking, fool's paradise, utopia, ideal, unattainable goal, impossible dream, imaginary idea, imaginary concept, imaginary vision, mental image, mental picture, mental construct, mental creation, mental fabrication, mental invention, mental illusion, mental delusion, mental fantasy [x]

giant, monster, troll, fiend, beast, brute, demon, goblin, goliath, colossus, behemoth, leviathan, cyclops, titan, wraith, specter, apparition, phantom, ghoul, poltergeist, revenant, bogeyman, bugbear, hobgoblin, devil, fiendish, fiendlike, fiendly, fiendishness, fiendishly [x]

creature, monster, brute, animal, fiend, savage, wild thing, critter, being, entity, organism, living thing, life form, fauna, varmint, vermin, predator, carnivore, mammal, reptile, amphibian, bird, fish, insect, arachnid, invertebrate, vertebrate, beastie, monstrosity, abomination, ogre, demon, devil, ghoul, goblin, troll, werewolf, vampire, chimera, dragon, griffin, hydra, leviathan, minotaur, wyvern, basilisk, kraken, wendigo, yeti, sasquatch [x]