Diehard(noun)
Meaning: a person who strongly opposes change or who continues to support something in spite of opposition.
Hindi meaning:अपरिवर्तनवादी
Synonyms: Conservative, Staunch, Adamant, Hardliner, Zealot
Antonyms: Progressive, Modernizer, Reformer
Example: He was much annoyed at my remark and called me a diehard.
Trick to remember: Die ho jahenge pr change accept nhi karenge Diehard log. 
