Obstinate

имя прилагательное 1) упрямый, своевольный; не поддающийся (убеждению, просьбам) Например: I don't think you'll succeed in changing his mind - he's very obstinate. — Не думаю, что тебе удастся его переубедить - он очень упрямый. Синоним(ы): stubborn, refractory, inflexible, headstrong, self-willed 2) стойкий, с трудом поддающийся устранению Например: obstinate sleeplessness — стойкая бессонница obstinate cough — трудноизлечимый кашель the obstinate problem of unemployment — трудноразрешимая проблема безработицы This soap will remove the most obstinate stains. — Это мыло отстирает самые трудновыводимые пятна.

Большой англо-русский словарь

Obstinate

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) 1. perversely adhering to an opinion, purpose, or course in spite of reason, arguments, or persuasion
Example: obstinate resistance to change 2. not easily subdued, remedied, or removed
Example: obstinate feverobstinately adverbobstinateness noun Synonyms: obstinate, dogged, stubborn, pertinacious, mulish mean fixed and unyielding in course or purpose. obstinate implies usually an unreasonable persistence
Example: an obstinate proponent of conspiracy theories. dogged suggests an admirable often tenacious and unwavering persistence
Example: pursued the story with dogged perseverance. stubborn implies sturdiness in resisting change which may or may not be admirable
Example: a person too stubborn to admit error. pertinacious suggests an annoying or irksome persistence
Example: a pertinacious salesclerk refusing to take no for an answer. mulish implies a thoroughly unreasonable obstinacy
Example: a mulish determination to have his own way.

Энциклопедический словарь Мерриама-Вебстера