In standard Chinese, they are nouns and have no antonyms

If you insist on adding antonyms to them

With the development of social language, toothpicks and chopsticks It can also be used as an adjective

For example, why is your J8 like a toothpick? Or Why do your legs look like two chopsticks?

This makes it simple

The antonyms for toothpicks are wide, for example, cannon barrels, beams, and

The antonyms for chopsticks are also wide. For example, elephant legs, tree stumps,

Finally, on behalf of the working people, I would like to give you an evaluation: Kong Yiji is still alive