Unfunny

Bill Maher is reactionary and unfunny.

Tom is reactionary and unfunny.

I've never managed to laugh at his unfunny jokes no matter how hard I've tried to make my mind laugh at his jokes.

Edward told an unfunny knock-knock joke that made his brother groan.

The decline of mobility, reason fading in and out like short-wave radio, the trickle of minor ailments that fed a deeper river—the subject was vast and not all of it was unfunny.