grainy /ˈgreɪni/ adjective grainier; grainiest
grainier; grainiest
Learner's definition of GRAINY
[also more grainy; most grainy]
1
: not smooth or fine不光滑的；不细腻的 2
of a photograph : not clear or sharp because of having a picture formed from many dots that are large enough to be seen（照片）有颗粒状的
— graininess
noun [noncount]