lame

someone who doesn't understand what is going on

a fabric interwoven with threads of metal; "she wore a gold lame dress"

deprive of the use of a limb, especially a leg; "The accident has crippled her for life"

pathetically lacking in force or effectiveness; "a feeble excuse"; "a lame argument"

disabled in the feet or legs; "a crippled soldier"; "a game leg"