Superficial or slight (7)
I believe the answer is:
sketchy
I believe this is a double definition.
'superficial' is the first definition.
(similar in meaning)
'slight' is the second definition.
(synonyms)
(Other definitions for sketchy that I've seen before include "Vague" , "Imprecise" , "Superficial" , "Barely outlined" , "Incomplete; rough" .)