迅雷不及掩耳 (seon3 leoi4 bat1 kap6 jim2 ji5) — as sudden as lightning; with lightning speed in Cantonese
seon˗₃迅leoiˎ₄雷batˉ¹不kapˍ₆及jimˊ²掩jiˏ₅耳Mandarin Pinyin: xun4 lei2 bu4 ji2 yan3 er3
Meaning of 迅雷不及掩耳
nounas sudden as lightning; with lightning speed
noun慢條斯理
nouna sudden peal of thunder leaves no time for covering the ears
noun(a swift clap of thunder leaves no time for one to cover the ears); to be extremely sudden and swift