Unknown definition
Not known.
- Not in the knowledge, understanding, or acquaintance of someone; unfamiliar (to)
- Not discovered, identified, determined, explored, etc.
adjective
Not known; unfamiliar.
A problem unknown in earlier times.
adjective
Not well known or widely known.
An unknown artist.
adjective
An unknown person or thing.
noun
That which is unknown.
Investigating the unknown.
noun
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Something that is not known.
This case has many unknowns.
noun
Not identified, ascertained, or established.
Received flowers from an unknown admirer.
adjective
The definition of an unknown is a person or thing that you are not familiar with, or a variable in a math problem for which you are trying to solve.
An actor no one has ever heard of who is trying to get into the movie business is an example of an unknown.
In the equation "x+2 = 4," x is an example of an unknown.
noun
Unknown means something that people are not aware of or familiar with.
A brand new taste that you have never tasted before is an example of something that you would describe as an unknown taste.
adjective
(mathematics) A quantity of unknown numerical value.
noun
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A person who is not well known, as to the general public.
Cast an unknown in the starring role.
noun
An unknown person, especially an Unknown Soldier.
The tomb of the unknowns.
noun
An unknown mathematical quantity; also, a symbol for this.
noun
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Any fact or place about which nothing is known (as in the phrase "into the unknown").
noun
Other Word Forms
Noun
Singular:
unknown
Plural:
unknowns