DictionaryAI

monster

USMON-stur/ˈmɑnstɚ/UKMON-stuh/ˈmɒnstə(ɹ)/

Pluralmonsters

15 meanings of monster

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  1. 1
    scary creaturenouncountable
    A strange, often large and frightening creature, usually an imaginary one from legend, film, or children's stories; in children's stories it can also be friendly or funny.

    My son won't sleep with the light off because he thinks there's a monster under the bed.

    The film is about a giant monster that rises from the sea and attacks the city.

    Similarbeast, creature

    Note

    The 'imaginary' part is only a tendency. Alexander Dow's 1768 translation of Inatulla's tales calls a roused tiger 'the monster', so a real and fearsome animal qualifies too. Grendel in Beowulf is the classic case of the mythical kind. Beast is the near synonym, but monster carries the terror with it.

    Checked 2 Nov 2026 · 3 facts

    • Alexander Dow's translation of Inatulla's tales was first published in 1768; Wiktionary's 1769 citation identifies a later edition. en.wikisource.org
    • The translation calls a tiger roused by noise 'the monster'. en.wiktionary.org
    • Grendel is a monster in Beowulf. gutenberg.org
  2. 2
    wicked personnouncountable
    A cruel, heartless person, especially one who commits terrible crimes.

    The newspapers branded the killer a monster after the trial.

    She could not believe her gentle brother was the monster described in court.

    UsageYou can say I'm a monster jokingly about yourself. Used seriously about someone, monster is a harsh accusation.

    Similarbeast, fiend, brute, ogre

    Oppositesaint

    Note

    Said of people, the word runs all the way from the courtroom to the joke. A relative can call a kidnapper 'this monster' at sentencing. Yet Mary Townsend, writing in The Atlantic in 2018, says 'Perhaps I am a monster' about throwing away her children's drawings.

    Checked 2 Nov 2026 · 2 facts

    • A relative used 'this monster' about a kidnapper during sentencing: Mike Closs spoke about Jake Patterson, who kidnapped his niece Jayme. mprnews.org
    • Mary Townsend wrote the quoted words in The Atlantic in 2018, referring to discarding her children's artwork; the article is dated September 16, 2018. theatlantic.com
  3. 3
    game enemynouncountable
    An enemy character in a game that players fight, controlled by the game rather than another person.

    The dungeon was packed with monsters guarding the final boss.

    Each monster drops gold and items when it is defeated.

    Similarenemy, mob

    Note

    Gamers have a plain synonym for these hostile characters: mob. What matters is the role, not the shape. Anything the game sets against the players and the players fight counts, whatever it looks like. Do not confuse it with the live-action verb, where a person plays the non-player characters.

  4. 4
    adjectivecolloquial
    Very large; impressively huge.

    The company posted monster profits this quarter.

    A monster storm is heading straight for the coast.

    UsageMostly before a noun: a monster storm, monster profits, a monster truck.

    Similargigantic, monstrous

    Oppositetiny, minuscule

    Note

    Here a noun is pressed into adjective service: a monster appetite, a monster truck, monster profits. It usually sits before a noun, but Rex Pickett's Sideways (2004) puts it after a verb: 'It's supposed to be monster.' It does not normally take more or most. That is why Michael O'Hearn's 'more monster than a monster truck' reads as a joke.

    Checked 31 Oct 2026 · 4 facts

    • Rex Pickett wrote Sideways. en.wikipedia.org
    • Sideways was first published in 2004; the first-edition record confirms that year. openlibrary.org
    • Sideways contains the exact quotation “It's supposed to be monster.” The passage is dialogue addressed to Jack, not a statement by Pickett himself. en.wiktionary.org
    • Michael O'Hearn used the exact phrase “more monster than a monster truck” in The Kids' Guide to Monster Trucks. en.wiktionary.org
  5. 5
    nouncolloquialcountable
    An object or thing that is unusually large.

    The new cargo plane is a monster, dwarfing every other aircraft on the runway.

    He pulled a monster of a carrot out of the garden.

    UsageOften in the pattern a monster of a + noun: a monster of a carrot.

    Similargiant, behemoth, whopper, colossus

  6. 6
    excellentadjectivecolloquial
    Outstanding; very good or excellent.

    The guitarist turned in a monster solo that had the whole crowd on its feet.

    That's a monster goal: pure quality from the first touch.

    Similarbrilliant, excellent, superb, outstanding, great

    Note

    Where the 'very large' adjective measures size, this one praises quality, and only context tells them apart. Andrew Klavan's The Long Way Home (2010) uses it of a person, 'You were monster', where size cannot be meant. A 'monster throw-in' in a football report could mean long or excellent. It may well mean both.

    Checked 31 Oct 2026 · 3 facts

  7. 7
    naughty childnounfigurativelyhumorouscountable
    An unruly, ill-behaved person, most often a child; a brat.

    By bedtime the toddler had become a complete monster, shrieking at everything.

    Those kids are little monsters, but their grandmother adores them.

    UsageOften little monster or little monsters, said with fond exasperation about children.

    Similarbrat, terror, horror, devil

    Oppositeangel

  8. 8
    nouncolloquialcountable
    A person of extraordinary talent in a particular field.

    The young striker is an absolute monster in front of goal.

    Critics hailed the pianist as a monster of technique and feeling.

    UsageOften followed by at, in, on or of to name the skill: a monster at chess, a monster of technique.

    Similargenius, master, virtuoso, phenomenon

    Note

    Here the word is high praise, usually for a performer or a player. Carol Ann Harris, in her memoir of Fleetwood Mac, calls a man 'a party monster' for his capacity to outdrink almost anyone in the Fleetwood Mac family. The admiration can be wry, but the word still means someone exceptional at something.

    Checked 2 Nov 2026 · 2 facts

Practice

Can you tell the meanings of monster apart? Answer 3 quick questions from this page, or write your own sentence and AI will check it.

Origin

From Middle English monstre, from Old French monstre, from Latin mōnstrum ("omen, portent"), from monēre ("to warn"): unnatural births and creatures were read as warnings from the gods.

Checked 1 Nov 2026 · 4 facts