disappear
verb.
get lost, as without warning or explanation
He disappeared without a trace
Synonym: go away, vanish
verb.
become invisible or unnoticeable
The effect vanished when day broke
Synonym: go away, vanish
verb.
cease to exist
An entire civilization vanished
Synonym: vanish
verb.
become less intense and fade away gradually
her resistance melted under his charm|her hopes evaporated after years of waiting for her fiance
Synonym: evaporate, melt
Antonym: appear