unknown
Elementary (A2)
IPA: /ʌnˈnoʊn/
KK: /ʌnˈnoʊn/
adjective
Definition
Something that is not recognized or identified, often because it has not been discovered or verified.
Example
The source of the noise remained unknown to everyone in the house.
Conversation
I just got a message from an unknown number.
That's always a bit suspicious, isn’t it?
Yeah, I wonder if it's someone trying to sell me something or just an old friend.
Could be anything! Maybe you should just ignore it for now.
Synonyms & Antonyms
Synonyms
unfamiliar
obscure
unidentified
Antonyms
known
familiar
recognized
noun
Definition
A person or thing that is not known or recognized, often used to refer to something mysterious or unfamiliar.
Example
The scientist explored the unknown in search of new discoveries.
Conversation
Have you heard about the new movie featuring that unknown actor?
Yeah, I read something about it; it's interesting to see new talent.
I wonder if they'll become popular or remain an unknown star.
Root Explanation
Unknown → It is formed from "un-" (meaning not) and "known" (from Old English "cnawan", meaning to know). The word "unknown" means not known or lacking knowledge about something.
Memory Tip
Think of 'not' ('un-') knowing something ('known') — that's why unknown means something that is not known.
Visually Confused Words
unbeknown
unown
known