English · Adjectives
unknown
/ʌnˈnoʊn/
[/ʌnˈnoʊn/]
not known
Intermediateadjective
Definition
Not known or identified.
Example
The cause of the fire is still unknown to the investigators.
The cause of the fire is still unknown to the investigators.
Etymology
From 'un-' plus 'known' (past participle of 'know').
How & Where It’s Used
Marks mysteries, strangers, or undiscovered facts.