疾雷不及掩耳 jíléibùjíyǎn'ěr lightning fast Origin Definitions Defs Strokes Stroke Words Sentences Sents 疾雷 jíléi sudden thunderclap A sudden or violent clap of thunder不及 bùjí verb too late To have insufficient time to do something or to be unable to catch up.掩耳 yǎn'ěr to cover one's ears To cover or stop one's ears; to refuse to listen to what someone is saying