1. Someone who has difficulty determining right from left
2. Someone who often confuses directions, and prefers visual aids.
3. Someone who has great difficulty reading maps and/or driving while listening to directions.
Can be spelt using a hyphen, if needed.
> Are you directionally challenged? I told you to turn left two blocks ago; we're going to be late now!
> Woman: You just turned left instead of right.
> Man: I'm sorry, I'm directionally-challenged.