Definition of second-guess verb from the Oxford Advanced American Dictionary

     

    second-guess

     verb
    verb
     
    Verb Forms present simple I / you / we / they second-guess he / she / it second-guesses past simple second-guessed -ing form second-guessing
     
    jump to other results
  1. 1 [transitive, intransitive] second-guess (somebody/something) to criticize someone after a decision has been made; to criticize something after it has happened
  2. 2[transitive] second-guess somebody/something to guess what someone will do before they do it It was impossible to second-guess the decision of the jury.
See the Oxford Advanced Learner's Dictionary entry: second-guess