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一本気 (ippongi) Japanese meaning: single-minded | Kotomora
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かく
で
、
嘘うそ
が
つけ
ない
。
He has a single-minded personality and can't tell a lie.
I like that person's straightforwardness.
Related words 一途いちず 一途 also means single-minded or devoted, but often emphasizes wholehearted dedication to a person or goal, while 一本気 focuses more on an earnest, straightforward personality.
真面目まじめ 真面目 means serious, earnest, or diligent, but lacks the 'one-track' nuance; 一本気 implies a more intense, sometimes inflexible focus.
Etymology Compound of 一本 (one straight line, single-minded) and 気 (spirit, temperament). The exact historical derivation is uncertain, but the combination suggests a temperament that runs in a single, unwavering direction.
