dig in one's heels
idiomPart ofheel
dig in one's heels — idiom
1. to refuse to change your opinion or plan, even when others try to persuade you
1.idiom
Definition
to refuse to change your opinion or plan, even when others try to persuade you
Example
The union dug in its heels and rejected the company's final pay offer.
Ava dug in her heels and insisted that the project deadline should not be moved.