不三不四

Traditional form:

不三不四

Pinyin (reading):

bùsānbùsì

Definitions:

• (idiom) dubious; shady; neither one thing nor the other; neither fish nor fowl; nondescript

Characters:

• 不 - no, not, un-; negative prefix
• 三 - three
• 不 - no, not, un-; negative prefix
• 四 - four

Traditional characters:

• 不 - no, not, un-; negative prefix
• 三 - three
• 不 - no, not, un-; negative prefix
• 四 - four