Inactive or lazy (4)
I believe the answer is:
idle
I believe this clue is a double definition.
'inactive' is the first definition.
(similar in meaning)
'lazy' is the second definition.
(similar in meaning)
(Other definitions for idle that I've seen before include "Hang about doing nothing" , "Not in active use" , "not being engaged" , "Member of comedy team" , "having been taken from service" .)