not have the first idea
not have the first idea
To be completely unaware of or know no information about something. I asked for help because I don't have the first idea about this new computer system.
See also: first, have, idea, not
Farlex Dictionary of Idioms.
- have no idea
- not have the slightest idea
- none the wiser
- ignorance is bliss
- where ignorance is bliss, 'tis folly to be wise
- not know (someone) from a bar of soap
- be lost in (something)
- be lost in something
- be lost to the world
- a different ball of wax