wise decisions and actions are sensible and based on good judgment [= sensible]
it is wise to do something
It's wise to check whether the flight times have changed before you leave for the airport.
be wise to do something
I think you were wise to leave when you did.
a wise precaution
I don't think that would be a very wise move (=not be a sensible thing to do).
someone who is wise makes good decisions, gives good advice etc, especially because they have a lot of experience of life:
a wise old man
At the time I thought he was wonderful, but I'm older and wiser now.
As a manager, Sanford was wise in the ways of (=knew a lot about) company politics.
to not understand something even after it has been explained to you:
Charlie explained how the system works, but I'm still none the wiser.
used for saying that no one will find out about something bad that someone has done:
He could easily have taken the money and no one would have been any the wiser.
to realize that someone is being dishonest:
Teachers quickly get wise to students who are cheating.
➔ wise upat wise2
5 informal especially American English
an annoying person who thinks they know more than they really do:
OK, wise guy, shut up and listen!
to realize what you should have done in a situation after it has happened:
It's easy to be wise after the event.
—wisely adverb:➔ wisdom
Invest the money wisely.
He nodded wisely.
➔ sadder but wiserat sad (6)WORD FOCUS: intelligent
similar words: clever especially BrE/smart especially AmE good at learning or understanding things quickly
bright intelligent - used especially about young people
brilliant a brilliant scientist, writer, student, historian etc is extremely intelligent and does very good work
brainy informal very intelligent and good at studying
gifted a gifted child is extremely intelligent
wise a wise person has a lot of experience and knowledge, and can give good advice
cunning/crafty good at using your intelligence to trick people
intelligent people: genius someone who is extremely intelligent and has great ideas
intellectual someone who is well-educated and interested in art, science, or literature at a high level
intelligentsia a country's intellectuals, considered as a single group
➔ See also intelligent