[dih-leer-ee-uh nt]


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. 2019

Examples from the Web for deliriant

Historical Examples of deliriant

  • The way to fight a deliriant is to keep your mind on a set task.

    The Sky Trap

    Frank Belknap Long

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

    The Sky Trap

    Frank Belknap Long