Definition of "second-guessing" [second-guessing]

• Present participle of second-guess. (verb)

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• "Inevitably, a new round of second-guessing will soon question whether the U.S. can or should compete in globalized manufacturing industries, whether in cleantech or other areas."
• "· Decisions that affect life and death are seldom clear cut, but rather by their very nature are prone to second-guessing, criticism and debate … even years later."
• "I was really nervous about it and second-guessing myself because Carly was so vulnerable in those scenes."