second thought

American  

Or 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.

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idioms

1. on second thought, after reconsideration.

   On second thought, I don't think I'll go.

second thought British  

noun

1. (usually plural) a revised opinion or idea on a matter already considered

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Etymology

Origin of second thought

First recorded in 1625–35

Example Sentences

“Actually, on second thought, I shouldn’t leave you alone.”

From Literature

Without a second thought, I give both of Eddie’s parents a hug before I leave.

From Literature

He studied history and theology at Cambridge and then headed to theological college with the aim of being ordained as a clergyman before he - and the church - had second thoughts.

From BBC

My second thought was what an insult it was.

From The Wall Street Journal

Here we see that even the most sealed-off conscience can be invaded by second thoughts.

From Los Angeles Times