General:
* Swallow: This is the most direct opposite, as it refers to the action of taking food into the stomach without chewing.
* Ignore: This could be used if you're talking about someone not paying attention to something they could chew on.
* Spit out: This refers to expelling food from the mouth without swallowing it.
Specific:
* Digest: If you're talking about the process of breaking down food, "digest" is the opposite of "chew" as it refers to the entire process of breaking down food into nutrients the body can use.
* Grind: If you're talking about the action of chewing, "grind" can be the opposite if the context is about the process of making something into a powder, for example, "grind coffee" vs. "chew gum."
Ultimately, the best antonym for "chew" will depend on the specific situation you're referring to.