Insignificant; blur (7)
I believe the answer is:
obscure
I believe this is a double definition.
'insignificant' is the first definition.
(I've seen this before)
'blur' is the second definition.
(synonyms)
(Other definitions for obscure that I've seen before include "Recondite, abstruse" , "Blot out" , "Dull, opaque" , "Hard to make out" , "Not clear, indistinct" .)