Incapable (6)
'incapable' is the definition.
(similar in meaning)
This is the entire clue.
(Other definitions for unable that I've seen before include "Incompetent sort of nebula" , "Not in a position (to)" , "Nebula (anag)" , "Not having the neccessary means" , "Not having the necessary means or skill or know-how" .)
'incapable' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for unfit that I've seen before include "Ill-equipped" , "Inapt" , "struggling to keep up?" , "In bad physical condition" , "Not healthy" .)