不三不四 bù sān bù sì

DEFINITIONS

  1. dubious
  2. shady
  3. neither one thing nor the other
  4. neither fish nor fowl
  5. nondescript

CHARACTERS

不 bù
HSK 1
no, not; un-; negative prefix
三 sān
HSK 1
three
不 bù
HSK 1
no, not; un-; negative prefix
四 sì
HSK 1
four