General antonyms:
* Appeared: This is the most direct opposite, meaning to become visible.
* Remained: This implies that something stayed in place and did not disappear.
* Returned: This implies that something came back after being absent.
* Survived: This suggests that something continued to exist despite a potential threat.
More specific antonyms, depending on the context:
* Materialized: If something vanished into thin air, the antonym could be "materialized," meaning it suddenly came into existence.
* Re-emerged: If something vanished from sight, the antonym could be "re-emerged," meaning it came back into view.
* Revived: If something vanished metaphorically (like a feeling or hope), the antonym could be "revived," meaning it came back to life.
To determine the best antonym, consider the specific situation in which "vanished" is used.