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1. Get lost, as without warning or explanation
   "He disappeared without a trace";
   - vanish, go away
    
2. Become invisible or unnoticeable
   "The effect disappeared when day broke";
   - vanish, go away
    
3. Cease to exist
   "An entire civilization disappeared";
   - vanish
    
4. Become less intense and fade away gradually
   "her resistance disappeared under his charm";
   - melt, evaporate

Derived forms: disappearing, disappeared, disappears

Type of: cease, end, finish, stop, terminate, weaken

Antonym: appear

Encyclopedia: Disappear