What's the opposite of "Cool?"

Well, apparently Genna knows! After cleaning most of the day, I wasn't feeling well and so I crashed on the couch. Hannah comes up to me and says, "Hey, Mom, look at me I'm going to do something cool!" She proceeds to do some kind of balancing spinning thing. Then Genna runs up and says, "Hey, Mom, yook at me I'm gonna do something...(pauses to think)...hot!" I cracked up which, of course, led to a long series of "Cool," "Hot," and even "Cold" things that they had to show me. They were twisting, falling, jumping, and everything in between. What silly gooses I have!