[ dih-leer-ee-uh nt ]
/ dɪˈlɪər i ənt /


involving or causing delirium.


a substance, as a compound or drug, that causes delirium.

Origin of deliriant

First recorded in 1880–85; deliri(um) + -ant Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for deliriant

  • There is some sort of plant outside that is giving off deliriant fumes.

    The Sky Trap|Frank Belknap Long
  • The way to fight a deliriant is to keep your mind on a set task.

    The Sky Trap|Frank Belknap Long