lumpy

"The lake was choppy, making it difficult to row the boat smoothly. "

"The potatoes need to be mashed."

"She picked a ripe tomato from the garden. "

"The smooth surface of the kitchen table was perfect for setting the dinner plates. "

"During the centuries, the people of Ireland struggled constantly to assert their right to govern themselves."

"Stir the gravy until there are no more lumps."

"the result of a course of action;  the result of a mathematical operation"

"The sailboat glided across the lake, powered by the gentle breeze. "

"The smooth transition between classes made it easy to get to my next lesson. "

"My family planted potatoes in our garden this spring. "

"He covered the baby with a blanket."

"By the action of electricity, the water was resolved into its two parts, oxygen and hydrogen."