not so fast

idiom

informal

—used in speech to say that one disagrees with what someone has said or to tell someone to stop or slow down

"This proves they're wrong." "Not so fast. There's other evidence to consider."

"The discussion is closed." "Not so fast. I have a few more things to say."

Examples of not so fast in a Sentence

Recent Examples on the Web

Peter thinks he's won — Milo is home, the threat to his family is gone — but not so fast. —Lauren Huff, Entertainment Weekly, 7 Nov. 2025

Denis Villeneuve’s Dune franchise may seem like an unlikely place to find beauty inspiration, but Paul says not so fast. —Margaux Anbouba, Vogue, 28 Oct. 2025

But not so fast, this story has layers. —Kurt Knutsson, FOXNews.com, 21 Oct. 2025

But not so fast, says Michael Mandel , chief economist at the Progressive Policy Institute. —Alex Sherman,contessa Brewer, CNBC, 25 Sep. 2025

Now that the Packers have wrapped up the No. 1 seed in the NFC … OK, not so fast. —Mike Sando, New York Times, 8 Sep. 2025

Experts say not so fast What are some other tips to keep my home cool and electric bill low? —Cailey Gleeson, jsonline.com, 15 July 2025

Domhnall Gleeson is saying not so fast to any comparisons between The Paper and The Office. —Dayna Haffenden, People.com, 6 June 2025

Related Articles But Saks said not so fast and threw cold water on the speculation. —Evan Clark, Footwear News, 3 June 2025

Rhymes for not so fast

• chloroplast
• epiblast
• opencast
• overcast
• protoplast
• rebroadcast
• telecast
• trophoblast
• ultrafast
• unsurpassed
• aghast
• amassed