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on second thought

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on second thought

Fig. having given something more thought; having reconsidered something. On second thought, maybe you should sell your house and move into an apartment. On second thought, let's not go to a movie.

See also: on, second, thought

on second thought

after having thought about something again On second thought we decided that it would be too expensive to fly, so we took a bus instead.

Related vocabulary: (but) then again

See also: 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]

See also: on, second, thought