1. stubbornly refusing to change one’s opinion or chosen course of action, despite attempts to persuade one to do so

Examples

• The obstinate child refused to eat his vegetables despite his parents’ pleas.
• She remained obstinate in her decision to quit her job.
• His obstinate refusal to apologize damaged their friendship.
• The obstinate stain wouldn’t come out no matter what cleaning product we used.
• Despite clear evidence, he was obstinate in maintaining his incorrect theory.
• The obstinate door handle finally broke after years of sticking.