unknown

As adjectives the difference between unknown and available

is that unknown is not known; unidentified; not well known while available is such as one may avail one’s self of; capable of being used for the accomplishment of a purpose.

As a noun unknown

is (algebra) a variable (usually x'', ''y'' or ''z ) whose value is to be found.

As an adverb na

is not.

As an interjection na

is used to show disagreement or negation.

As an initialism na

is noun animate.

As a symbol na

is nanoamp.

As an adjective unknown is

not known; unidentified; not well known.

As a noun unknown is

a variable (usually x, y or z) whose value is to be found.

As adjectives the difference between unknown and unknowing

is that unknown is not known; unidentified; not well known while unknowing is without knowing; ignorant.

As a noun unknown

is a variable (usually x, y or z) whose value is to be found.

As adjectives the difference between arcane and unknown

is that arcane is understood by only a few; obscure; requiring secret or mysterious knowledge while unknown is not known; unidentified; not well known.

As a noun unknown is

(algebra) a variable (usually x'', ''y'' or ''z ) whose value is to be found.

As nouns the difference between nothing and unknown

is that nothing is something trifling, or of no consequence or importance while unknown is a variable (usually x, y or z) whose value is to be found.

As a pronoun nothing

is not any thing; no thing.

As an adverb nothing

is not at all; in no way.

As an adjective unknown is

not known; unidentified; not well known.

As adjectives the difference between unaware and unknown

is that unaware is not aware or informed; lacking knowledge while unknown is not known; unidentified; not well known.

As a noun unknown is

a variable (usually x, y or z) whose value is to be found.

As adjectives the difference between ambiguous and unknown

is that ambiguous is open to multiple interpretations while unknown is not known; unidentified; not well known.

As a noun unknown is

a variable (usually x, y or z) whose value is to be found.

As adjectives the difference between unknown and unfamous

is that unknown is not known; unidentified; not well known while unfamous is not famous.

As a noun unknown

is (algebra) a variable (usually x'', ''y'' or ''z ) whose value is to be found.

As adjectives the difference between inexplicable and unknown

is that inexplicable is impossible to explain; not easily accounted for while unknown is not known; unidentified; not well known.

As a noun unknown is

(algebra) a variable (usually x'', ''y'' or ''z ) whose value is to be found.

Retired is a related term of unknown.

As adjectives the difference between retired and unknown

is that retired is secluded from society (of a lifestyle, activity etc); private, quiet while unknown is not known; unidentified; not well known.

As a verb retired

is (retire).

As a noun unknown is

(algebra) a variable (usually x'', ''y'' or ''z ) whose value is to be found.