obstinate
adjective/ˈɑbstənət/
Frequency rank: #16,720 most common English word
Meaning
Stubbornly refusing to change one's opinion or behavior; not yielding to argument or persuasion.

Example sentence
Despite the doctor's warnings about his health, the obstinate patient continued to smoke and refused to follow any medical advice.
Synonyms & related words
- stubborn
- hardheaded
- headstrong
- persistent
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