plain definition
plain
(obvious, clear to understand): It was quite plain that something was wrong. It’s plain to everyone that he doesn’t agree.
(without a pattern or decoration): She had on a plain black dress. We sat at a plain wooden table.
(without anything added): She made some plain yogurt last night. I had a piece of plain chicken for dinner.
polite (not attractive): Her younger daughter is rather plain.
(honest and direct; frank): The plain truth is that she doesn’t like you. He was known for his plain speaking.
