Immobile, handicapped, hurt Crippled.
a man who can not walk is a legless man or women
A passerby
A pedestrian.
An insomniac
You call them illiterate.
because they cannot walk
unbeatable
You call them 'mute'.
You could call such a peson a cynic.
A person who cannot see is called a blind person.
Assertive
Well, honey, someone who can't walk is typically called a "person with a disability" or "someone who uses a wheelchair." But hey, you could always go old school and call them a "cripple," though that term is about as outdated as my first flip phone. Just remember, it's not about the label, it's about treating them with respect and dignity.