unbridled

1 of 2

adjective

un·​bri·​dled ˌən-ˈbrī-dᵊld 

1

formal + literary : unrestrained

unbridled enthusiasm

live in an area of unbridled development

2

formal + literary : not confined by a bridle

unbridled

2 of 2

past tense and past participle of unbridle

Synonyms of unbridled

Adjective

• rampant
• uncontrolled

Examples of unbridled in a Sentence

Adjective

The crowd was swept with unbridled enthusiasm.

a case that was solved only because of one detective's unbridled determination to bring the killer to justice

Recent Examples on the Web

Adjective

Trump has staked his political capital on the AI industry’s success, saying its unbridled development is key to winning the AI race against China. — Garance Burke, Los Angeles Times, 12 Oct. 2026

Duncombe’s friends remember her sunny spirit, boisterous and infectious laugh, unbridled optimism and passion for new experiences. — Rebecca Rubin, Variety, 12 Oct. 2026

His family had wielded unbridled power — with his son, brothers, nephews and nieces holding top government positions. — ABC News, 7 Oct. 2026

The newfangled internet granted children almost unbridled freedom — and the ability to wander far afield, digitally at least, of where their parents could protect them from harm. — Zoe Sottile, CNN Money, 3 Oct. 2026

Word History

First Known Use

Adjective

14th century, in the meaning defined at sense 1

Rhymes for unbridled

• bridled
• idled
• sidled

Kids Definition

unbridled

adjective

un·​bri·​dled ˌən-ˈbrīd-ᵊld 

: unrestrained, ungoverned

unbridled enthusiasm