- Traditional Chinese Character(HanT):
不三不四
- Simplified Chinese Character(HanS):
不三不四
- Bopomofo(Mandarin Phonetic Symbols): ㄅㄨˋ ㄙㄢ ㄅㄨˊ ㄙˋ (ㄅㄙㄅㄙ)
- Bopomofo(Zhuyin Keyboard Input/IME): "1j4n0 1j6n4" (1j4n01j6n4)
- 「不三不四」的漢語拼音: Bu4 San1 Bu2 Si4
- (ASCII) Hanyu Pinyin: "busanbusi" "Bu4San1Bu2Si4" "Bu4 San1 Bu2 Si4" (BSBS)
- (Latin) Hànyǔ Pīnyīn: BùSānBúSì [ Bù Sān Bú Sì ]
- (英文翻譯) English Translation: "dubious"
- (西語翻譯) Traducción Español: "dudoso"
- (日文翻譯) 日本語翻訳: "疑わしい"