Dictionary.com
Thesaurus.com
Synonyms

unbridled

American  
[uhn-brahyd-ld] / ʌnˈbraɪd ld /

adjective

  1. not controlled or restrained.

    unbridled enthusiasm.

  2. not fitted with a bridle.


unbridled British  
/ ʌnˈbraɪdəld /

adjective

  1. with all restraints removed

  2. (of a horse, etc) wearing no bridle

"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 unbridled

First recorded in 1325–75; Middle English unbrydled. See un- 1, bridle ( def. ), + -ed 2 ( def. )

Explanation

Unbridled means "unrestrained." When you find out that you just won the lottery, feel free to jump up and down with unbridled joy. Go ahead, most people would probably let loose in the same way. A bridle is the contraption used to control a horse, including the reins held by the rider and the bit that goes into the horse’s mouth. Add the un prefix and it means there is no control. Unbridled is often used to describe people’s emotions or actions and it can be either a good or a bad thing. If you have unbridled spending, you’re in danger of going in debt. If you tackle homework with unbridled enthusiasm, you’re likely going to get good grades.

Keep Reading on Vocabulary.com

Vocabulary lists containing unbridled

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:

Another way to stand out during the interview process is to show unbridled enthusiasm.

From MarketWatch Jul. 8, 2026

There were tears of disbelief and unbridled joy as the unflappable Jose Canale smashed home Paraguay's penalty to complete one of the greatest World Cup upsets in recent memory.

From BBC Jun. 30, 2026

In that respect, the piece was an unbridled success, as Deggans was quick to remind me.

From Slate May 5, 2026

The ferocity of the Lakers answer rattled Houston such that the Rockets were hit with two technical fouls on unbridled anger from Jae’Sean Tate and coach Ime Udoka.

From Los Angeles Times Apr. 19, 2026

Rebeca, the one with an impatient heart, the one with a fierce womb, was the only one who had the unbridled courage that Úrsula had wanted for her line.

From "One Hundred Years of Solitude" by Gabriel Garcia Marquez

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training