obdurate.

Firmly refusing to change an attitude despite pressure or persuasion.

Use it for

Words that belong together

• obdurate refusal
• obdurate opposition

On the page

The chairman remained obdurate after three rounds of negotiation.

Usage notes

Primary category: psychology / human behavior. Forms: Comparative more obdurate; superlative most obdurate 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: character, behavior. Commonness: uncommon.