Quick as lightning synonyms | adverbs

Synonyms for Quick as lightning as an Adverb

• instantly
• immediately
• at once
• straight away
• promptly
• on the spot
• forthwith
• in the same breath
• then and there
• pronto
• in the twinkling of an eye
• on the instant
• in a fraction of a second
• posthaste
• in the bat of an eye