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Synonyms

unlawful

American  
[uhn-law-fuhl] / ʌnˈlɔ fəl /

adjective

  1. not lawful; contrary to law; illegal.

    Synonyms:
    illicit
  2. born out of wedlock; illegitimate.

    Synonyms:
    natural, bastard

unlawful British  
/ ʌnˈlɔːfʊl /

adjective

  1. illegal

  2. illicit; immoral

    unlawful love

  3. an archaic word for illegitimate

"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

Synonym Usage

See illegal.

Other Word Forms

Derived Forms

Etymology

Origin of unlawful

First recorded in 1250–1300, unlawful is from the Middle English word unlaweful. See un- 1, lawful

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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.

Khan has repeatedly denied all allegations of sexual misconduct, with his lawyers describing the decision as "unlawful, procedurally unfair and unsupported by evidence".

From BBC • Jun. 9, 2026

District Judge John McConnell said the restrictions on processing of asylum, work permit, green card and citizen applications from nationals of 39 African, Asian, Latin American and Middle Eastern countries were unlawful.

From Barron's • Jun. 5, 2026

Today, Kelver, a 28-year-old trans woman, faces two felony charges—aggravated assault and possession of a deadly weapon with unlawful intent—which could carry up to 15 years in prison.

From Slate • Jun. 4, 2026

The short-barreled rifle was deemed unlawful because it did not meet the minimum federal requirement of 16 inches.

From Los Angeles Times • May 28, 2026

Under the regulations, a federally funded law enforcement program or activity is unlawful if it has a racially discriminatory impact and if that impact cannot be justified by law enforcement necessity.

From "The New Jim Crow" by Michelle Alexander

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