What is the antonym of language?

There isn't a single perfect antonym for "language" because the word has multiple meanings. It depends on the context in which you're using it. Here are some possibilities:

If you're thinking of language as a system of communication:

* Silence: The complete absence of communication.

* Nonverbal: Communication using body language, gestures, or facial expressions instead of words.

* Incomprehensibility: Something that is impossible to understand.

If you're thinking of language as a specific way of speaking:

* Dialect: A regional or social variation of a language.

* Jargon: Specialized vocabulary used by a particular group.

* Slang: Informal language used by a particular group.

If you're thinking of language as a way of expressing ideas:

* Thought: A concept, idea, or image that exists in your mind.

* Feeling: A subjective experience, like love, anger, or sadness.

* Action: A physical or mental activity.

Ultimately, the best antonym for "language" will depend on the specific meaning you are trying to express.