second-guess

verb

sec·​ond-guess ˌse-kᵊŋ-ˈges How to pronounce second-guess (audio)
-kən(d)-
second-guessed; second-guessing; second-guesses

transitive verb

1
: to criticize or question actions or decisions of (someone) often after the results of those actions or decisions are known
meet almost every morning and, over coffee, second-guess the local coachBruce Newman
also : to engage in such criticism of (an action or decision)
second-guess the general's strategy
2
: to seek to anticipate or predict
lived royally by his ability to second-guess the stock marketTime
second-guesser noun

Examples of second-guess in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
One delay can scare off a buyer or cause second-guessing. Michael Gargiulo, Forbes.com, 29 July 2025 Little League has an interest in applying its rules and not having judges second-guess game decisions. Michael McCann, Sportico.com, 23 July 2025 Chris thought the tickets were expensive but having seen pricey Broadway shows before, didn't second-guess the final cost. Arpan Lobo, Freep.com, 19 July 2025 Across town, Lara is preemptively second-guessing the night as well. Peter Debruge, Variety, 16 July 2025 See All Example Sentences for second-guess

Word History

First Known Use

1941, in the meaning defined at sense 1

Time Traveler
The first known use of second-guess was in 1941

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Cite this Entry

“Second-guess.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/second-guess. Accessed 2 Aug. 2025.

Kids Definition

second-guess

verb
sec·​ond-guess
ˌsek-ᵊŋ-ˈges,
-ən-
1
: to question or criticize actions or decisions of (someone) often after the results of those actions or decisions are known
2
second-guesser noun

More from Merriam-Webster on second-guess

Last Updated: - Updated example sentences
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