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Synonyms

infamous

American  
[in-fuh-muhs] / ˈɪn fə məs /

adjective

  1. having an extremely bad reputation.

    an infamous city.

    Synonyms:
    notorious, ill-famed, disreputable
    Antonyms:
    reputable
  2. deserving of or causing an evil reputation; shamefully malign; detestable.

    an infamous deed.

    Synonyms:
    villainous, heinous, base, vile, shocking, wicked, odious, nefarious, scandalous, disgraceful
    Antonyms:
    admirable, praiseworthy
  3. Law.

    1. deprived of certain rights as a citizen, as a consequence of conviction of certain offenses.

    2. of or relating to offenses involving such deprivation.


infamous British  
/ ˈɪnfəməs /

adjective

  1. having a bad reputation; notorious

  2. causing or deserving a bad reputation; shocking

    infamous conduct

  3. criminal law

    1. (of a person) deprived of certain rights of citizenship on conviction of certain offences

    2. (of a crime or punishment) entailing such deprivation

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What does infamous mean? Infamous means having, deserving, or resulting in a bad or evil reputation. The word is typically used to describe people, actions, and events. It’s especially used in the context of violent crimes, scandals, and tragedies. Infamous is often used interchangeably with the word notorious, which most commonly means famous or well-known for a negative reason. But infamous is also sometimes used in a more general way to describe things, such as behavior, as shameful, shocking, detestable, vile, heinous, or scandalous. The state of quality of being infamous is infamy. Example: The infamous bank robber was known for setting fire to the crime scene while making his escape.

Other Word Forms

Etymology

Origin of infamous

First recorded in 1350–1400; Middle English, from Latin infām(is) ( see infamy) + -ous

Explanation

Someone who is infamous has a very bad reputation. If you become a Hollywood star and find yourself on the pages of gossip magazines for your affairs and addictions, you will have succeeded in becoming infamous. Infamous is from Latin infamis, for negative fame. If you're bad but unknown, then you're not infamous — it's reserved for those wicked and well-known people that capture our collective imagination. It is a strong and resonant term. Some synonyms are notorious, disgraceful, and odious. The stress is on the first syllable.

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Vocabulary lists containing infamous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The cancellation quickly turned into an infamous riot.

From Los Angeles Times ● Oct. 12, 2026

Baron Cohen, 54, is known for his self-created comic characters including infamous spoof wannabe gangster Ali G, Kazakh reporter Borat Sagdiyev, and Austrian fashionista Brüno Gehard.

From BBC ● Oct. 11, 2026

The Federal Reserve Bank of Atlanta recently revealed that housing affordability nationwide was about as bad as at the peak of the infamous housing bubble of the mid-2000s.

From MarketWatch ● Oct. 9, 2026

One was Sam Bankman-Fried’s FTX, the now-defunct Bahamas-based crypto asset exchange infamous for its meteoric rise and tumultuous downfall.

From The Wall Street Journal ● Oct. 5, 2026

No more arguing and citing examples and quoting the famous dead and castigating the infamous living.

From "Middlesex: A Novel" by Jeffrey Eugenides

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