What is the prefixes that make antonyms?

There isn't a single prefix that universally creates antonyms. Antonyms are words with opposite meanings, and while some prefixes do frequently indicate an opposite meaning, it's not a guaranteed rule.

Here's a breakdown:

Common Prefixes That Often Indicate Opposites:

* un-: unhappy/happy, unlock/lock, untie/tie

* in-: inactive/active, incorrect/correct, incomplete/complete

* im-: impossible/possible, imperfect/perfect, immoral/moral

* ir-: irregular/regular, irresponsible/responsible, irrelevant/relevant

* dis-: disagree/agree, dishonest/honest, disconnect/connect

* non-: non-fiction/fiction, non-stop/stop, non-existent/existent

Important Considerations:

* Context is Key: Some words with these prefixes might not be true antonyms. For example, "unhappy" isn't necessarily the opposite of "happy" - it simply means "not happy."

* Multiple Meanings: Prefixes can have different meanings depending on the word they attach to. "un-" might mean "not" in "unhappy," but it can also mean "reverse" in "undo."

* No Single Rule: There are many other ways to create antonyms, including using different root words entirely (e.g., "good" and "bad").

It's best to remember that prefixes are just one tool for understanding antonyms. Understanding the nuances of language and context is essential for accurately identifying opposites.