have second thoughts

Waver after deciding

To have second thoughts is to reconsider a decision or feel doubt about something you've committed to: I was going to accept the job, but now I'm having second thoughts.

The phrase suggests wavering confidence rather than outright reversal—you haven't changed your mind yet, but you're no longer sure.

Related

think it over · think better of · reconsider · review · vacillate · doubt · hesitate · drag one's feet · retract · qualms · rethink · regret · ambivalence · back out · pull back · question · equivocate · change one's mind

Opposites
certainty and conviction

have second thoughtsbe positive

Maintain hopeful attitude

commitment and resolve

have second thoughtsstay the course

Continue despite difficulties

stand firm · go all in · hold firm · stick to one's guns · take the plunge

decisiveness

have second thoughtsmake up one's mind

Reach a firm decision

Family

having, haves, second, seconds, seconded, seconding, secondly, thought, thoughts

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G