headstrong.

Insisting on one's own course despite warnings or reasonable guidance.

Use it for

Words that belong together

• headstrong behavior
• headstrong determination

On the page

Her headstrong determination drove the plot forward.

Usage notes

Primary category: literary / elevated general. Forms: Comparative more headstrong; superlative most headstrong 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. Commonness: moderately common.