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Synonyms

lawful

American  
[law-fuhl] / ˈlɔ fəl /

adjective

  1. allowed or permitted by law; not contrary to law.

    a lawful enterprise.

    Synonyms:
    legal
  2. recognized or sanctioned by law; legitimate.

    a lawful marriage; a lawful heir.

    Synonyms:
    licit
  3. appointed or recognized by law; legally qualified.

    a lawful king.

  4. acting or living according to the law; law-abiding.

    a lawful man; a lawful community.


lawful British  
/ ˈlɔːfʊl /

adjective

  1. allowed, recognized, or sanctioned by law; legal

"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

Other Word Forms

Etymology

Origin of lawful

First recorded in 1250–1300, lawful is from the Middle English word laghful. See law 1, -ful

Explanation

When something's legal, or the rules allow it, you can call it lawful. It's lawful to plant a tree in your yard, but it's not lawful to dig up a tree in the city park. Things that are lawful are allowed or permitted, like driving after you've gotten your driver's license or baking your neighbor a cake. Neither of these things is prohibited by law, so they're lawful. You have a lawful right to build a cabin on land you own, and it's also lawful to put up a fence. The adjective comes from law, which has an Old English root, lagu, "ordinance, rule, regulation, or a district governed by them."

Keep Reading on Vocabulary.com

Vocabulary lists containing lawful

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:

"This merger is lawful, pro-competitive, and will benefit consumers, creators, workers, and the entertainment industry," the Paramount spokesperson said.

From Barron's Jul. 20, 2026

Instead he said it was "legitimate, lawful, necessary and a workable legal provision".

From BBC Jul. 1, 2026

It said the communications cited in the Justice Department complaint—attributed to an unnamed former employee—didn’t affect egg prices, and that the company’s conduct was lawful and supported the market.

From The Wall Street Journal Jul. 1, 2026

“EOIR will continue to make scheduling adjustments to ensure all cases are handled in a timely and lawful manner.”

From Los Angeles Times Jul. 1, 2026

"I am their lawful prince," Theon said stiffly.

From "A Clash of Kings" by George R.R. Martin

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