Meanings
adjectivequick as lightning (not comparable)
- idiomaticnot comparablesimileExtremely quick.
adverbquick as lightning (not comparable)
- idiomaticnot comparablesimileExtremely quickly.
Synonyms & antonyms
Also see
Origin
In allusion to the rapidity of flashes of lightning.
Full word history & related roots →Cite this entry
APA
quick as lightning. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/quick%20as%20lightning
MLA
“quick as lightning.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/quick%20as%20lightning. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “quick as lightning,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/quick%20as%20lightning.
Source: quick as lightning on Wiktionary, CC BY-SA 4.0.