unknown
pronunciation
How to pronounce unknown in British English:
UK [ˌʌnˈnəʊn]
How to pronounce unknown in American English:
US [ˌʌnˈnoʊn]
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- Noun:
- an unknown and unexplored region
- anyone who does not belong in the environment in which they are found
- a variable whose values are solutions of an equation
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- Adjective:
- not known
- being or having an unknown or unnamed source
- not known to exist
- not famous or acclaimed
- not known before
Word Origin
- unknown (adj.)
- c. 1300, "strange, unfamiliar" (of persons, places), from un- (1) "not" + past participle of know (v.). Compare Old English ungecnawen. In reference to facts, "not discovered or found out," it attested from early 14c. The noun meaning "unknown person" is recorded from 1590s; the unknown "that which is unknown" is from 1650s.
Synonym
unexplored question mystery x virgin conundrum territory riddle puzzle secret book deep arcanum closed soil unknown factor
unascertained unmeasured unidentified unset undefined indeterminate unfixed unsettled undecided uncalculated undetermined unestablished
undiscovered unfamous untraced unrecognized unnamed unheard-of unfamiliar nameless untracked undistinguished untraveled unnoticed anonymous uncharted unexplored
Antonym
Example
- 1. But the accuracy of these scans is unknown .
- 2. Unknown causes account for approximately twenty percent of infertility cases .
- 3. Have patience with the unknown .
- 4. The fate of the company at home is unknown .
- 5. Mr brown 's court remains largely unknown .