trippiest

/ˈtrɪpiəst/
adjective
  1. Most psychedelic, surreal, or bizarre in a mind-altering way; most like a hallucinogenic experience.
    • Her dream was the trippiest she'd ever had, full of talking animals and floating buildings.
    • That was the trippiest movie I have ever seen, with colors melting into strange shapes.
    • The trippiest part of the art exhibit was the room full of mirrors and flashing lights.