up for

Eager to try

Up for indicates readiness or willingness to do something: I'm up for pizza if you are, Are you up for a hike tomorrow?

It also means being considered or scheduled for something: The house is up for sale, She's up for promotion, The bill is up for a vote next week.

In British slang, to be up for it suggests eagerness, often with sexual overtones.

willing

ready

Suitable for use now

eagerIntensely wanting something
gameOrganized play or sport
keenSharp or enthusiastic

interested · open · amenable · enthusiastic · inclined · disposed · receptive · agreeable · prepared · motivated

Opposites

willingness/enthusiasm

up forreluctant

Unwilling to act

against · unwilling · disinclined · dead set against · not interested

candidacy/availability

up forout of the running

No longer competing

off the table · out of the picture

capability/readiness

up forout of one's depth

Beyond one's competence

not cut out for

Family

up, for, upon, upper, upgrade, uphold, upload, upped, upsurge

Familiarity: Top 20,000
Profile: Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G