The restaurant had several dumb-waiters to transport food between floors.

I bought some dumb cakes from the bakery.

The dumb geniuses gathered for a brainstorming session.

I saw two dumb pianos at the music store.

I saw two dumb spinets at the antique store.

The dumbs and cancels are piling up in the office.

Those dumb shits never learn from their mistakes.

Those dumb-shits never learn from their mistakes.

I prefer smart TVs over dumb TVs.

The dumb bunnies hopped around the garden.