As adjectives the difference between smudged and smudgy
is that smudged is blurred as by being rubbed while smudgy is blurred, sort of smudged.
As a verb smudged
is (smudge).
smudged
English
Adjective
(head)
Blurred as by being rubbed.
Verb
(head)
(smudge)
smudgy
English
Adjective
(er)
Blurred, sort of smudged.
Like a thick smoke (such as is emitted by a smudge pot).