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

For most of basketball history, guards had routinely shot long 2-pointers without a second thought, even though taking one step back would yield a 50% greater return.

From The Wall Street Journal

In recent weeks, though, investors began to have second thoughts about the future of the artificial-intelligence trade, and the outlook for the economy.

From The Wall Street Journal

Before the children were born, the couple’s relationship began to deteriorate, and Zheng had second thoughts, according to documents in a Colorado custody suit over the two children after their births.

From The Wall Street Journal

Then: "On second thought, I changed my mind."

From BBC

That opening motif returns at the very end, suggesting that Robert has some second thoughts about selling his soul, but they are quickly suppressed in the noisy, triumphant climax.

From The Wall Street Journal