0 someone who is suffering from amnesia (= a medical condition in which they lose their memory):
1 used to describe a person suffering from amnesia (= a medical condition in which they lose their memory), or an occasion when this condition is experienced:
an amnesiac experience
The medication has some amnesiac effect.
I can't remember everything, but I'm not an amnesiac.
The trouble is people are amnesiacs when it comes to the lessons of history.
Matt Damon plays the amnesiac ex-agent Jason Bourne.
Christie was said to have had an amnesiac episode.
Amnesiac drugs such as Rohypnol and GHB have been used in rapes.
However, 3, 5, and 7 days after the animals had demonstrated normal retention, they are amnesiac.
