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

Dermatologists say not so fast—in fact, the idea of a base tan might be one of the most common (and dangerous) myths in skin care. —Laura Schober, Health, 6 May 2025

Some clergy say not so fast The Trump administration rescinded a policy that prohibited immigration agents from making arrests in sensitive areas, such as hospitals, schools and churches. —Ryan Fonseca, Los Angeles Times, 30 Jan. 2025

This looks like a defensive battle, but not so fast. —Ralph D. Russo, The Athletic, 22 Dec. 2024

Among the topics discussed: Zach Lavine to the Denver Nuggets … not so fast, sweetheart. —Matt Schubert, The Denver Post, 18 Dec. 2024

In their brief to presiding Judge Philip S. Gutierrez, the plaintiffs say not so fast. —Michael McCann, Sportico.com, 19 July 2024

But not so fast, executive producer and showrunner Jess Brownell tells Glamour. —Jessica Radloff, Glamour, 13 June 2024

But San Mateo County, where San Francisco International Airport (SFO) is located, says not so fast. —Ryan MacAsero, The Mercury News, 10 Apr. 2024

Amazon Prime announced on Jan. 29 that Prime Video customers would start being charged a fee for ad-free streaming, but a recent Washington lawsuit is saying not so fast. —Chris Sims, The Indianapolis Star, 13 Feb. 2024

Rhymes for not so fast

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