wise1
Pronunciation: /wʌɪz/
adjective
- having or showing experience, knowledge, and good judgement: she seems kind and wise a wise precaution
- sensible or prudent: it would be wise to discuss the matter with the chairman
- having knowledge in a specified subject: he is wise in the ways of haute couture
- (wise to) informal aware of, especially so as to know how to act: at seven she was already wise to the police
verb

Phrases
-
be wise after the event
- understand and assess a situation only after its implications have become obvious: it is easy to be wise after the event
-
be none (or not any) the wiser
- not understand something, even though it has been explained: she said an awful lot but he wasn’t any the wiser I am still none the wiser about the meaning of the word

Origin:
Old English wīs, of Germanic origin; related to Dutch wijs and German weise, also to wit2