both
neither.
neither
Neither. Opposite ( antonym ) of polite is rude, offensive.
This is a particular word for intestines. Neither entrails, nor intestines, has an antonym.
It is neither.
Neither it is a verb.
Neither and both.
It is neither.
Neither it is a homophone.
As far as I know, there IS no antonym for carat. This is like saying, "What is the anyonym for ounce?" Neither has an opposite as such.
It could be either or neither. For example, grimly is an antonym of gleefully but a synonym of drearily.
Neither, you have to have two words for there to be synonyms/antonyms. You need to say: is aquatic a synonym or antonym to _____?