second-guess

verb

second-guessed; second-guessing; second-guesses
Synonyms of second-guess

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 coach.—Bruce 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 market.—Time
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.
The show’s creative team was able to concentrate on making the series itself rather than second-guessing every decision to appeal to the international market. — Scott Roxborough, HollywoodReporter, 14 Oct. 2026 Arguments about Mexican wolf Tallman also pressed Boyles and other environmental lawyers on the court’s role in second-guessing the agency’s expertise and decision-making. — Sharon Bernstein, Sacbee.com, 14 Oct. 2026 In response to that case, a biotech CEO recently warned in these pages that letting courts and politicians second-guess the FDA’s scientific judgment endangers the whole drug pipeline. — Julie F. Kay, STAT, 25 Sep. 2026 At work, wardrobe fittings suddenly meant second-guessing fabrics and layers in case of hot flashes on and off camera. — Partner Content, Variety, 23 Sep. 2026 See All Example Sentences for second-guess

Word History

First Known Use

1941, in the meaning defined at sense 2

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

Browse Nearby Words

Cite this Entry

“Second-guess.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/second-guess. Accessed 19 Oct. 2026.

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

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