Definitions

1. noun

something that cannot be expressed in words or is too terrible to be described

“The horror of the war was an unspeakable tragedy for the families affected.”

2. verb

to be unable to express something in words or to refuse to talk about something

“She was unable to unspeak the traumatic event that she had witnessed.”

3. adjective

too terrible or shocking to be described or expressed

“The artist’s depiction of the scene was an unspeakable masterpiece of horror.”