'Juè píqi' literally combines 倔 (stubborn, obstinate), 脾 (spleen — historically linked to temperament in Chinese medicine and idioms), and 气 (vital energy or disposition). Together, it refers to a deeply ingrained, inflexible temper — not just momentary annoyance, but a habitual resistance to advice, compromise, or change. It carries a slightly negative or affectionate-exasperated tone, often used when describing someone who digs in their heels despite good reasons to yield.

This term is commonly applied to children, elders, or strong-willed individuals whose stubbornness feels like part of their core personality. Unlike the neutral 'stubbornness' (固执), 倔脾气 implies emotional reactivity — the person may sulk, refuse to speak, or act impulsively when challenged. It’s frequently heard in family contexts or casual speech, rarely in formal writing.