Unknown
7 lettersadjectivecommonUpdated June 2026
Definition
Not known or familiar; not identified or discovered. Can also be used as a noun referring to an unknown person or thing.
“The cause of the disease remains unknown to medical science.”
Pronunciation
IPA
/ʌnˈnəʊn/
Syllables
un·known
Related Words
Synonyms
Antonyms
acquaintanceknown
Word Game Tips
🟩
Wordle
Contains NKNOWN pattern, double N, three vowels
🔤
Scrabble
Worth 14 points; useful UN- prefix with K
Words Related to Unknown
Explore Similar Words
Try These Tools
Dictionary References
Look up unknown in an authoritative dictionary for full definitions, pronunciation, and etymology.
Ready to test your word skills?
Download Word Challenge for unlimited word puzzles, a fresh Daily Challenge, and head-to-head multiplayer. Guess the hidden word in six tries or fewer!