This is no silly exercise in anti-intellectualism.

It would be a silly and pointless exercise to evaluate evidence in light of a theory we believe to be false.

She decided she'd had enough of this silly exercise.

The unintended effect, of course, of the camp's transparently silly re-gendering exercises is that it demonstrates to its young charges just how unstraight they really are.

The whole silly exercise got me nowhere.

"You mean those silly exercises that once were held on Earth?"

The way I justify this silly exercise in hard labor is that I can write it off as a learning experience!

But I prefer not to be apprehended in this silly exercise.

It's time to abandon these silly exercises for a portfolio of college applicants' real work done in high school.

But not to worry; there is nothing in this silly exercise that could trouble, or even arouse, the emotions of an audience.