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lightning-quick

a. (context idiomatic English) Incredibly fast

Usage examples of "lightning-quick".

Upon battling the lightning-quick Baenre, Drizzt had come to believe those rumors, and after wearing the bracers in sparring for the last few weeks, he had confirmed their abilities.

The beach-comber was aware of a lightning-quick tensing of the slumped muscles.

With a lightning-quick strike of his machete, Claudio cut off the head of a deadly pit viper.