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Synonyms

unrestrained

American  
[uhn-ri-streynd] / ˌʌn rɪˈstreɪnd /

adjective

  1. not restrained restrained or controlled; uncontrolled or uncontrollable.

    the unrestrained birthrate in some countries.

    Synonyms:
    excessive, unbridled, unrepressed, unchecked
  2. not constrained; spontaneous.

    unrestrained laughter.


unrestrained British  
/ ˌʌnrɪˈstreɪnɪdlɪ, ˌʌnrɪˈstreɪnd /

adjective

  1. not restrained or checked; free or natural

"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

  • unrestrainedly adverb
  • unrestrainedness noun

Etymology

Origin of unrestrained

First recorded in 1580–90; un- 1 + restrained

Explanation

You know how your uncle Marvin is always screaming at the television when his game shows are on? That’s because he’s being unrestrained. Anyone exhibiting uncontrolled emotion is unrestrained, meaning they don’t hold back. Unrestrained comes from the French restreinte, which means “hold back.” When something is restrained, that thing is confined in some way. Unrestrained means just the opposite. When you’re feeling unrestrained excitement, you might jump up and down, or call all your friends to tell them how you feel. The unrestrained crush you have on the guy in math class might lead you to cover your notebooks with his name written in bubble letters. It happens to the best of us.

Keep Reading on Vocabulary.com

Vocabulary lists containing unrestrained

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.

He identifies U.S. interests as he goes and pursues them with an unrestrained gusto.

From The Wall Street Journal • Jan. 6, 2026

"Society has become so diluted and unrestrained, people now want to go back to the way it was," she said.

From BBC • Nov. 10, 2025

Remove the veil of folklore, and the plot isn’t too different from Oliphant’s career as an unrestrained cartoonist, whose satirical illustrations drew the ire of power-hungry politicians and like-minded megalomaniacs all over the world.

From Salon • Sep. 5, 2025

The objective of these developments was to elevate law above the unrestrained and arbitrary will of the monarch.

From Slate • Feb. 26, 2025

What we need is more crowding, more unrestrained and obsessive communication, more open channels, even more noise, and a bit more luck.

From "The Lives of a Cell" by Lewis Thomas