splashed vs splattered

splashed and splattered both are adjectives.

Word	Noun	Adjective	Verb	Adverb
splashed	No	Yes	No	No
splattered	No	Yes	No	No

As adjectives, splashed and splattered are synonyms defined as:

splashed and splattered: covered with bright patches (often used in combination)

Other synonyms of splashed include dabbled, spattered.

splashed (adjective)	splattered (adjective)
covered with bright patches (often used in combination)	covered with bright patches (often used in combination)
(of a fluid) having been propelled about in flying drops or masses