obstinacy

🇬🇧/ˈɒbstɪnəsi/ 🇺🇸/ˈɑːbstɪnəsi/ 52GRE
the quality or condition of being obstinate; stubbornness. "his reputation for obstinacy"

noun [具体名词]固执,顽固;(病痛等的)难治,难解除

I resisted the proposal with obstinacy.
我顽强地反对他的提议。

ob(反) + stin(=stand站) + acy → 反着站 → 固执, 倔强
单词造句: