"Hitch on" is a phrasal verb that means to attach or connect something to another thing. Some antonyms for "hitch on" include detach, disconnect, unfasten, and loosen. These words describe the opposite action of "hitch on," where instead of bringing things together, they are pulled apart. Another antonym for "hitch on" is release, which suggests setting something free from its attachment. When using antonyms for "hitch on," it is important to take the context into consideration, as there may be alternate words that better fit the situation. Nonetheless, understanding antonyms is crucial for language learners and writers who are looking to express different shades of meaning.