not know the first thing about

idiom

: to have little or no knowledge about (something or someone)
I don't know the first thing about children.

Examples of not know the first thing about in a Sentence

Recent Examples on the Web Leaders and professionals who are laser-focused on building their businesses from the ground up may not know the first thing about building a podcast, as well. Ginni Saraswati, Forbes, 9 Aug. 2022

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Dictionary Entries Near not know the first thing about

Cite this Entry

“Not know the first thing about.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/not%20know%20the%20first%20thing%20about. Accessed 16 Apr. 2024.

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