English Reference
adjective

obstinate

adj.
US /ˈɑbstənət/ UK /ˈɒbstɪnˌeɪt/ ob·sti·nate

  1. 01 B2 Upper Intermediate

    refusing to change your mind or your ideas, even when you are wrong.

    stubbornly adhering to an opinion, purpose, or course of action, often despite reason or persuasion.

    Simple

    He was too obstinate to admit that he had taken the wrong road.

    In context

    The negotiator faced an obstinate opponent who refused to make even the slightest concession regarding the new contract terms.

  2. 02 C1 Advanced Formal

    used to describe a problem or a physical thing that is very hard to fix or get rid of.

    describing inanimate objects or conditions that are resistant to treatment, removal, or control.

    Simple

    The cleaner struggled to remove the obstinate stain from the white carpet.

    In context

    The patient suffered from an obstinate infection that failed to respond to several different courses of standard antibiotics.

    tractablemanageable
  3. 03 C2 Proficiency Literary

    describing a face or look that shows someone is determined not to change their mind.

    referring to a facial feature or expression that is fixed, unmoving, and indicative of a stubborn nature.

    Simple

    She stared at him with an obstinate look, her jaw set tight.

    In context

    There was an obstinate set to his chin that warned his colleagues he would not be easily swayed by their emotional appeals.

When, midway through the film, an obstinate craftsman has to be fired, we learn of it via the team meeting that follows and the offending employee is never referred to by name.

The Guardian· 7 Sept 2026

Where Cumming has a puppyish enthusiasm – bounding out of a morose heartbreak soundtracked by Radiohead – Henderson is variously obstinate, contrary and funny.

The Guardian· 21 Aug 2026

Inherited from Middle English obstinat(e) (“obstinate, stubborn”), from Latin obstinātus, perfect passive participle of obstinō (“set one's mind firmly upon, resolve”) (see -ate (adjective-forming suffix)), from ob (“before”) + *stinare, from stare (“to stand”). Doublet of ostinato.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin obstinātus
Level C1 · Advanced
Frequency Occasional
Updated