fantastic

adjective

1. 1

   ludicrously odd

   Hamlet's assumed antic disposition

   fantastic Halloween costumes

2. 2

   extraordinarily good or great ; used especially as intensifiers

   a fantastic trip to the Orient

   the film was fantastic!

3. 3

   extravagantly fanciful in design, construction, appearance

   Gaudi's fantastic architecture

4. 4

   existing in fancy only

   fantastic figures with bulbous heads the circumference of a bushel"- Nathaniel Hawthorne

5. 5

   fanciful and unrealistic; foolish

   a fantastic idea of his own importance