na-adjective, noun which may take the genitive case particle 'no', noun
obstinate; stubborn; inflexible
Describes a person or attitude that is unyielding and determined, often with a nuance of being headstrong or uncompromising. Can be used both positively (steadfast) and negatively (pigheaded).
He has an obstinate personality and never budges once he's decided something.
An inflexible attitude sometimes causes clashes with those around you.
stubborn person; diehard
stubborn and short-tempered
staunch devotion to one's master; single-hearted loyalty
stubbornly honest; rigidly upright
rustic and stubborn; boorishly obstinate
Standard kanji spelling; the only written form.
Composed of 一 (one) and 徹 (penetrate, thorough). The combination suggests a single-minded, thoroughgoing persistence. The exact historical derivation is uncertain, but the kanji meaning aligns with the sense of unwavering determination.