[ˈstʌb(ə)n], (Adjective)

Definitions:
- having or showing dogged determination not to change one's attitude or position on something, especially in spite of good arguments or reasons to do so
(e.g: a stubborn refusal to learn from experience)


Phrases:
- as stubborn as a mule

Origin:
Middle English (originally in the sense ‘untameable, implacable’): of unknown origin