not so fast

phrase

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

The unemployment rate fell in June and normally that's good news, but economists are saying - not so fast. — Dana Taylor, USA Today, 22 July 2026

But not so fast, says Jeremy Schachter, branch manager at Fairway Independent Mortgage Corporation. — Tim Maxwell, CBS News, 7 Apr. 2026

The weather app on an iPhone showed the Milwaukee area could receive 20 inches of snow on Sunday, March 15, but the National Weather Service says not so fast. — Drake Bentley, jsonline.com, 10 Mar. 2026

But here in a hotel ballroom, the party’s beleaguered moderates have another message — not so fast. — Meg Kinnard, Fortune, 3 Mar. 2026

Rhymes for not so fast

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