DictionaryAI

criminal

KRIM-i-nuhl/ˈkɹɪm.ɪ.nəl/

Noun pluralcriminals

5 meanings of criminal

Practice

  1. 1
    crime lawadjective
    Having to do with crime or the laws that punish it.

    She works as a lawyer in the criminal courts.

    The police opened a criminal investigation into the theft.

    UsageUsually comes before a noun: criminal law, a criminal record.

    Similarpenal

    Oppositecivil

    Note
  2. 2
    offendernouncountable
    A person who has broken the law and is guilty of a crime.

    The police caught the criminal who stole the car.

    Many criminals work at night to avoid being seen.

    Similaroffender, lawbreaker, perpetrator

  3. 3
    illegal actadjective
    Against the law in a way that counts as a crime.

    Stealing from a store is a criminal act.

    In many countries, taking bribes is criminal, and officials can go to prison for it.

    UsageOften comes after a verb: something is criminal. In criminal law, it means about crime, not against the law.

    Similarillegal, unlawful, illicit

    Oppositelegal, lawful, legitimate

  4. 4
    adjective
    Having broken the law by committing a crime.

    Police arrested the criminal gang that robbed the bank.

    A criminal group ran the smuggling operation.

    UsageSaid of people or groups who break the law: a criminal gang. A criminal court just deals with crime.

    Similarguilty, lawbreaking, crooked

    Oppositelaw-abiding, innocent

    Note
  5. 5
    shamefuladjectivefiguratively
    Very bad or shameful, even though it is not really against the law.

    It is criminal to waste so much good food.

    Throwing away those new toys was a criminal waste.

    UsageUsed to say something is very bad: it's criminal to waste food, a criminal waste.

    Similarscandalous, outrageous, shameful, deplorable, disgraceful

    Note

Practice

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Origin

From Latin crimen, meaning "crime," which came into English through French.

Checked 5 Nov 2026 · 2 facts