不大不小 [－－－－]

Jyutping bat1 daai6 bat1 siu2
Pinyin bù dà bù xiǎo

Definitions (CC-CANTO)
  1. neither big nor small
Definitions (Wiktionary)
  1. phrase, idiomatic
    neither too big nor too small
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）