second thought

noun
1.
Often, second thoughts. reservation about a previous action, position, decision, judgment, or the like:
He had second thoughts about his decision.
Idioms
2.
on second thought, after reconsideration:
On second thought, I don't think I'll go.
Also, second-thought.
Origin
1625-35
British Dictionary definitions for on second thought

second thought

noun
1.
(usually pl) a revised opinion or idea on a matter already considered
Slang definitions & phrases for on second thought

second thought

Related Terms

don't give it a second thought


Idioms and Phrases with on second thought

on second thought

Resulting from a revised opinion or change of mind, as in I thought I'd go to the movies, but on second thought I'd rather stay home. Similarly, have second thoughts means “change one's mind,” as in I've had second thoughts about moving to Florida. This idiom alludes to ideas that come later. [ Mid-1600s ]