can't be serious

idiom

used to express disbelief about what someone said
"I'm joining the army." "You can't be serious."

Dictionary Entries Near can't be serious

Cite this Entry

“Can't be serious.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/can%27t%20be%20serious. Accessed 23 Jun. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!