in all seriousness
idiom
: in a serious way
—used to stress that a statement, question, etc., is not a joke
"I was the queen of England in a previous life," she said in all seriousness.
In all seriousness, if he does propose, what will you say?
Cite this Entry
“In all seriousness.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20all%20seriousness. Accessed 27 Apr. 2025.
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