noun
obstinacy
OBS-tih-nuh-see
noun
1
Stubborn refusal to change one's mind or course of action.
"His obstinacy cost him the deal — he wouldn't budge on a single point."
How to Use Obstinacy
Learner’s notesIn plain EnglishStubbornness — refusing to change your mind.
Common pairings
sheer obstinacy
stubborn obstinacy
Word Forms
obstinacies plural
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His _____ cost him the deal — he wouldn't budge on a single point.
Etymology
From "obstinate" plus the noun-forming suffix "-cy".