unbridled.

1. Not held back or kept within reasonable limits.

2. Not fitted with the headgear used to guide a horse.

Use it for

Words that belong together

• unbridled enthusiasm
• unbridled ambition

On the page

Unbridled speculation pushed the price far beyond any defensible estimate.

Usage notes

Primary category: literary / elevated general. Forms: Comparative more unbridled; superlative most unbridled when comparison is meaningful. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: description, character. Commonness: moderately common.