“Unofficial” in Japanese
Short answer
Unofficial in Japanese is “非公認” (hikounin). Full meaning: unofficial, unauthorised.
Other ways to say “Unofficial” in Japanese
非公式
hikoushiki informal, unofficial
私製
shisei privately-made (esp. postcard, mailing card, etc.), commercially-made, non-government, unofficial
アンダーグラウンド
andaaguraundo underground (film, theater, etc.), unconventional, alternative, experimental, radical; underground (economy, press, etc.), unofficial, illegal, black (money), shady, of unknown origin
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