unknown

Unknown is a related term of veiled.

As adjectives the difference between unknown and veiled

is that unknown is not known; unidentified; not well known while veiled is hidden, such as by a veil.

As a noun unknown

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

As a verb veiled is

(veil).

Unknown is a related term of undecipherable.

As adjectives the difference between unknown and undecipherable

is that unknown is not known; unidentified; not well known while undecipherable is not easily deciphered; difficult to read.

As a noun unknown

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

Unknown is a related term of paradoxical.

As adjectives the difference between unknown and paradoxical

is that unknown is not known; unidentified; not well known while paradoxical is having self-contradictory properties.

As a noun unknown

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

Unknown is a related term of questionable.

As adjectives the difference between unknown and questionable

is that unknown is not known; unidentified; not well known while questionable is (obsolete) inviting questions; inviting inquiry.

As a noun unknown

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

As adjectives the difference between undetermined and unknown

is that undetermined is not determined; not settled; not decided 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.

Enigmatic is a related term of unknown.

As adjectives the difference between enigmatic and unknown

is that enigmatic is enigmatic 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 adjectives the difference between unknown and worrisome

is that unknown is not known; unidentified; not well known while worrisome is causing worry; perturbing or vexing.

As a noun unknown

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

Unknown is a related term of unlikely.

As adjectives the difference between unknown and unlikely

is that unknown is not known; unidentified; not well known while unlikely is not likely; improbable; not to be reasonably expected.

As nouns the difference between unknown and unlikely

is that unknown is (algebra) a variable (usually x'', ''y'' or ''z ) whose value is to be found while unlikely is something or somebody considered unlikely.

As an adverb unlikely is

in an improbable manner.

Problematical is a synonym of unknown.

As adjectives the difference between problematical and unknown

is that problematical is doubtful or disputed 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.

Unfathomable is a related term of unknown.

As adjectives the difference between unfathomable and unknown

is that unfathomable is impossible to fathom or understand; incomprehensible 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.