Main Entry: ob·sti·nate

Pronunciation: \ˈäb-stə-nət\

Function: adjective

Etymology: Middle English, from Anglo-French obstinat, Latin obstinatus, past participle of obstinare to be resolved, from ob- in the way + -stinare (akin to stare to stand)

Date: 14th century

1 : perversely adhering to an opinion, purpose, or course in spite of reason, arguments, or persuasion <obstinate resistance to change>
2 : not easily subdued, remedied, or removed <obstinate fever>

— ob·sti·nate·ly adverb

— ob·sti·nate·ness noun

synonyms obstinate, dogged, stubborn, pertinacious, mulish mean fixed and unyielding in course or purpose. obstinate implies usually an unreasonable persistence <an obstinate proponent of conspiracy theories>. dogged suggests an admirable often tenacious and unwavering persistence <pursued the story with dogged perseverance>. stubborn implies sturdiness in resisting change which may or may not be admirable <a person too stubborn to admit error>. pertinacious suggests an annoying or irksome persistence <a pertinacious salesclerk refusing to take no for an answer>. mulish implies a thoroughly unreasonable obstinacy <a mulish determination to have his own way>.