unknown

As an adjective 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 a verb ignored is

(ignore).

As adjectives the difference between eminent and unknown

is that eminent is eminent; distinguished; noteworthy 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 rare and unknown

is that rare is (cooking|particularly meats) cooked very lightly, so the meat is still red (in the case of steak or beef in the general sense) or rare can be very uncommon; scarce or rare can be (obsolete) early while unknown is not known; unidentified; not well known.

As a verb rare

is (us|intransitive) to rear, rise up, start backwards.

As a noun unknown is

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

As nouns the difference between itis and unknown

is that itis is (informal) a medical condition accompanied by inflammation while unknown is (algebra) a variable (usually x'', ''y'' or ''z ) whose value is to be found.

As an adjective unknown is

not known; unidentified; not well known.

As adjectives the difference between unknown and unknowable

is that unknown is not known; unidentified; not well known while unknowable is not knowable.

As nouns the difference between unknown and unknowable

is that unknown is a variable (usually x, y or z) whose value is to be found while unknowable is something that cannot be known.

As adjectives the difference between unknown and indefinite

is that unknown is not known; unidentified; not well known while indefinite is without limit; forever, or until further notice; not definite.

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 famous

is that unknown is not known; unidentified; not well known while famous is 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 unacquainted and unknown

is that unacquainted is not acquainted 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 incalculable and unknown

is that incalculable is (not comparable) very great or numerous 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 wondrous and unknown

is that wondrous is amazing, inspiring awe, "to be marvelled at" while unknown is not known; unidentified; not well known.

As an adverb wondrous

is in a wonderful degree; remarkably.

As a noun unknown is

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