by the seat of one's pants

phrase

: using experience and intuition rather than mechanical aids or formal theory

Word History

First Known Use

1958, in the meaning defined above

Time Traveler
The first known use of by the seat of one's pants was in 1958

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Cite this Entry

“By the seat of one's pants.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/by%20the%20seat%20of%20one%27s%20pants. Accessed 16 Mar. 2026.

Last Updated: - Definition revised
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