旗鼓相當 [－－－当]

Jyutping kei4 gu2 soeng1 dong1
Pinyin qí gǔ xiāng dāng

Definitions (CC-CEDICT)
  1. lit. two armies have equivalent banners and drums (idiom); fig. evenly matched
  2. roughly comparable (opponents)
Definitions (粵典–words.hk)
  1. 形容詞
    兩方​軍隊​陣容​、​聲勢​不相上下​。​比喻​雙方勢​均力​敵​。
    to be equal in numbers and strength
Definitions (Wiktionary)
  1. phrase, idiomatic
    to be well-matched; to match in capabilities