Shady

Ellie and Olivia went with me to do the laundry yesterday. Olivia wanted to stay in the car while I went in to get the clothes out of the washer. I told her I didn't want her to stay in the car b/c there are a bunch of shady people walking around.
"Do you know what shady is?" I asked.
"no." they replied.
"it's when your not sure if a person is good or bad but you get a feeling they are bad." I said.
after a moment of silence Olivia says, "Shady rhymes with Katie!"
"ha, ha, You're right Olivia!" I say.
"The opposite of shady is plain." Ellie says
"hmmmmmm.... I guess you could say that" I can't remember if I said it or thought it.