[{"Bold_text": "adjective", "List Items": ["firmly or stubbornly adhering to one's purpose, opinion, etc.; not yielding to argument, persuasion, or entreaty.Synonyms: pertinacious , refractory , inflexible , perverse , intractable , unbending , unyielding , obdurate , mulish Antonyms: tractable , submissive", "characterized by inflexible persistence or an unyielding attitude; inflexibly persisted in or carried out:obstinate advocacy of high tariffs.", "not easily controlled or overcome:the obstinate growth of weeds.", "not yielding readily to treatment, as a disease."]}]