uneven vs spotty

uneven and spotty both are adjectives.

Word	Noun	Adjective	Verb	Adverb
uneven	No	Yes	No	No
spotty	No	Yes	No	No

As adjectives, uneven and spotty are synonyms defined as:

Other synonyms of uneven include scratchy.

uneven (adjective)	spotty (adjective)
not even or uniform as e.g. in shape or texture	lacking consistency
not divisible by two	having spots or patches (small areas of contrasting color or texture)
lacking consistency
(of a contest or contestants) not fairly matched as opponents
variable and recurring at irregular intervals