Unknown definition

ŭn-nōn
Frequency:
Not known.
  • Not in the knowledge, understanding, or acquaintance of someone; unfamiliar (to)
  • Not discovered, identified, determined, explored, etc.
adjective
6
1
Not known; unfamiliar.

A problem unknown in earlier times.

adjective
5
0
Not well known or widely known.

An unknown artist.

adjective
5
0
An unknown person or thing.
noun
5
1
That which is unknown.

Investigating the unknown.

noun
3
0
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Something that is not known.

This case has many unknowns.

noun
1
0
Not identified, ascertained, or established.

Received flowers from an unknown admirer.

adjective
1
1
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
0
0
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
0
0
(mathematics) A quantity of unknown numerical value.
noun
0
0
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A person who is not well known, as to the general public.

Cast an unknown in the starring role.

noun
0
0
An unknown person, especially an Unknown Soldier.

The tomb of the unknowns.

noun
0
0
An unknown mathematical quantity; also, a symbol for this.
noun
0
0
Not known; unidentified; not well known.
adjective
0
0
(algebra) A variable (usually x, y or z) whose value is to be found.
noun
0
0
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Any fact or place about which nothing is known (as in the phrase "into the unknown").
noun
0
0
A person of no identity; a nonentity.
noun
0
0

Other Word Forms

Noun

Singular:
unknown
Plural:
unknowns

Origin of unknown

  • From un- +"Ž known, past participle of know. Cf. Old English ungecnawen.

    From Wiktionary