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
No, it is not possible to walk through a wall as walls are solid barriers that cannot be passed through by a person.