also: じょうばり
na-adjective, noun
stubborn; obstinate; headstrong
Describes a person who is unyielding, willful, or refuses to change their mind. Often used in a negative sense, implying unreasonable persistence.
彼は情張りで、一度決めたら絶対に曲げない。
He is stubborn and never changes his mind once he's decided.
あの子は情張りだから、説得するのは難
That kid is so headstrong that it's hard to persuade them.
頑固 is a more common and general word for stubbornness, while 情張り implies a more emotional or willful stubbornness, often with a nuance of being unreasonable.
意地っ張り also means stubborn, but often focuses on stubbornness out of pride or a desire to have one's own way, whereas 情張り can emphasize a deep-seated, almost innate obstinacy.
Compound of 情 (じょう, 'feelings, emotion') and 張り (はり, from 張る 'to stretch, to be obstinate'). The exact historical derivation is uncertain, but it likely refers to a person whose emotions are 'stretched tight' or unyielding.