Explained in clear terms, as in writing.(adjective)
Declared information openly.(adjective)
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Use "expositional" in a sentence
"The "above and beyond" "beliefs and actions" were referring to things such as expositional preaching over purely "topical" Christless preaching that only adds more tares to their churches."
"I already knew which major surprises were coming, so I just had to wait around for them while the characters spouted incredibly leaden, flat, expositional dialogue."
"Behind the terrible child performances and lengthy expositional scenes, it's basically just an after-school special about the power of friendship."