Appear

Antonyms of appear:
disappear, go away, vanish, be, be certain, real, _or_ true, be the fact, exist, depart, leave, retire, withdraw, clear, dissolve, evanesce, evaporate, fade, go, melt, conclude, desist, discontinue, finish, halt, quit, terminate, die, expire, pass away, perish, cease, end, stop, check out, clock, flee, vamoose.
Examples of usage:
  1. He did not appear big enough- somehow.
    "The Law-Breakers", Ridgwell Cullum.
  2. And now it would appear that the lady had no name!
    "Audrey", Mary Johnston.
  3. As Hunter did not appear, she followed the foreman's advice.
    "The Ragged Trousered Philanthropists", Robert Tressell.