B2adjective2K

Unknown

UK /["/ˌʌnˈnəʊn/"]/US /["/ˌʌnˈnəʊn/"]/

Definition

not known or identified

In simple words: Not known or familiar.

Examples

The mysterious book contained many unknown secrets.
His unknown origins intrigued the researchers.
The scientist was faced with several unknown variables in the experiment.
An unknown figure stood in the shadows, watching the scene unfold.
The destination was unknown, adding to the excitement of the journey.
Despite his efforts, the reason for her departure remained unknown.
They discovered an unknown species of plant in the remote rainforest.
He felt a sense of dread about the unknown challenges ahead.

Usage notes

Used to describe something that is not recognized or identified. Commonly used in everyday conversation and writing. Avoid when the context is clear without it.

Grammar pattern

standalone adjective

Memory hint

Think of 'unkown' as 'unknown' — imagine a detective trying to solve an unfamiliar case.

Collocations

be
remain
completely
entirely
quite
to
for parts unknown
to parts unknown
for reasons unknown
be
remain
completely
entirely
quite
to
for parts unknown
to parts unknown
for reasons unknown
be
remain
completely
entirely
quite
to
for parts unknown
to parts unknown
for reasons unknown

Synonyms

unfamiliar
unidentified
strange
unrecognized

Antonyms

known
familiar
certain

Common mistakes

Confused with 'unkown' — incorrect spelling.
Using it in a sentence where something is actually known.
Misplacing it in a sentence making it unclear.