up to something

up to something

1. Fig. [of someone] plotting something. •

I think they are up to something.

•

I am sure that Lily and Max are up to something evil.

2. Fig. [of someone] well enough or rested enough to do something. •

I'm not quite up to the party.

•

Are you up to a game of volleyball?

3. to be as good as something; to be good enough for something. •

This work's not up to the standard of the class.

•

Your last essay was not up to your best.