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English definition of “second thought”

second thought

noun
 
 
on second thoughts UK used when you want to change a decision you have made: I'll have tea, please - on second thoughts, make that coffee.Changing your mind
without a second thought If you do something without a second thought, you do it without first considering if you should do it or not: She'll spend a hundred pounds on a dress without a second thought.ImmediatelyCertaintyConfidence and self-assurance
have second thoughts to change your opinion about something or start to doubt it: [+ about + doing sth] I've been having second thoughts about doing the course.Changing your mind
(Definition of second thought from the Cambridge Learners Dictionary © Cambridge University Press)
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