obstinately Definition

obstinate
adj

1. Refusing to change one's opinion or course of action; stubborn; inflexible.

Thesaurus: firm, stubborn, headstrong, inflexible, pigheaded, strong-minded, adamant, resolved, persistent, steadfast, resolute, diehard, set in one's ways, hellbent (slang); Antonym: amenable, yielding.
2a. Difficult to defeat or remove;
2b. Said especially of a disease or medical condition, etc: difficult to treat; unyielding.

Derivative: obstinately
adverb

In an obstinate way
Thesaurus: firmly, stubbornly, tenaciously, persistently, resolutely, stolidly, inflexibly, recalcitrantly.

Etymology: 14c: from Latin obstinare, obstinatum to persist.