Verb
have second thoughts (third-person singular simple present has second thoughts, present participle having second thoughts, simple past and past participle had second thoughts)
(idiomatic) To change one's opinion, or be uneasy about a previous decision.
At first it seemed a good idea, but now it's getting close I'm having second thoughts.
I have second thoughts. Maybe God is malicious. Told to Valentine Bargmann. Albert Einstein
At 41 and a half weeks pregnant, I started to have second thoughts about becoming a mother. Jenny Mollen
However, if any would-be punters heard the 44-year-old's lament after his second-round 75 at the Memorial, then they may have second thoughts about an investment. Source: Internet
Knollwood Country Club, where the Radners planned to host Brooke’s party, was still willing to host, but Melanee Radner, Brooke’s mom, said she started to have second thoughts. Source: Internet
Wiam Shawki Malaeb, a Lebanese expat, did not have second thoughts about travelling to his country when he first heard about the Beirut explosions. Source: Internet