Synonyms of the word

unknown

• adj. (sometimes postpositive) Not known; unidentified; not well known.
• n. (algebra) A variable (usually x, y or z) whose value is to be found.
• n. Any fact or place about which nothing is known (as in the phrase "into the unknown").
• n. A person of no identity; a nonentity.

alien

• n. A person, animal, plant, or other thing which is from outside the family, group, organization, or territory…
• n. A foreigner residing in a country.
• n. Any life form of extraterrestrial origin.
• n. One excluded from certain privileges; one alienated or estranged.
• adj. Pertaining to an alien.
• adj. Not belonging to the same country, land, or government, or to the citizens or subjects thereof; foreign.
• adj. Very unfamiliar, strange, or removed.
• v. (transitive) To estrange; to alienate.
• v. (law) To transfer the ownership of something.

anon.

• n. (in bibliographies) Abbreviation of anonymous.

anonymous

• adj. (not comparable) Lacking a name; not named, for example an animal not assigned to any species.
• adj. (not comparable) Without any name acknowledged of a person responsible.
• adj. (not comparable) Of unknown name; whose name is withheld.
• adj. (comparable, figuratively) Lacking individuality.

chartless

• adj. Without a chart or charts.
• adj. Not mapped; uncharted; vague.

dishonorable

• adj. Without honor, or causing dishonor.
• adj. Lacking respect or ethical principles.

inglorious

• adj. Ignominious; disgraceful.
• adj. Not famous; obscure.

interloper

• n. (obsolete) An unlicensed or illegitimate trader.
• n. One who interferes, intrudes or gets involved where not welcome, particularly a self-interested intruder.

intruder

• n. Someone who intrudes.

nameless

• adj. Not having a name; unnamed.
• adj. Whose name is unknown; unidentified or obscure.
• adj. anonymous.
• adj. Unable to be described or expressed.

obscure

• adj. Dark, faint or indistinct.
• adj. Hidden, out of sight or inconspicuous.
• adj. difficult to understand.
• adj. not well-known.
• v. (transitive) To render obscure; to darken; to make dim; to keep in the dark; to hide; to make less visible,…
• v. (transitive) To hide, put out of sight etc.
• v. (intransitive, obsolete) To conceal oneself; to hide.

region

• n. Any considerable and connected part of a space or surface; specifically, a tract of land or sea of considerable…
• n. An administrative subdivision of a city, a territory, a country or the European Union.
• n. (historical) Such a division of the city of Rome and of the territory about Rome, of which the number…
• n. (figuratively) The inhabitants of a region or district of a country.
• n. (anatomy) A place in or a part of the body in any way indicated.
• n. (obsolete) Place; rank; station; dignity.
• n. (obsolete) The space from the earth's surface out to the orbit of the moon: properly called the elemental…

strange

• adj. Not normal; odd, unusual, surprising, out of the ordinary.
• adj. Unfamiliar, not yet part of one's experience.
• adj. (physics) Having the quantum mechanical property of strangeness.
• adj. (obsolete) Belonging to another country; foreign.
• adj. (obsolete) Reserved; distant in deportment.
• adj. (obsolete) Backward; slow.
• adj. (obsolete) Not familiar; unaccustomed; inexperienced.
• v. (obsolete, transitive) To alienate; to estrange.
• v. (obsolete, intransitive) To be estranged or alienated.
• v. (obsolete, intransitive) To wonder; to be astonished.
• n. (slang, uncountable) vagina.

stranger

• adj. comparative form of strange: more strange.
• n. A person whom one does not know; a person who is neither a friend nor an acquaintance.
• n. An outsider or foreigner.
• n. A newcomer.
• n. (humorous) One who has not been seen for a long time.
• n. (obsolete) One not belonging to the family or household; a guest; a visitor.
• n. (law) One not privy or party to an act, contract, or title; a mere intruder or intermeddler; one who interferes…
• v. (obsolete, transitive) To estrange; to alienate.

transcendent

• adj. surpassing usual limits.
• adj. beyond the range of usual perception.
• adj. free from constraints of the material world.
• n. That which surpasses or is supereminent; something excellent.

trespasser

• n. One who trespasses; an interloper.

unacknowledged

• adj. Not acknowledged.

unbeknown

• adj. not beknown.

unbeknownst

• adv. (followed by to) without the knowledge of.

uncharted

• adj. not surveyed or mapped.

undiagnosed

• adj. (of a disease or condition) That had not been diagnosed.

undiscovered

• adj. That has not been discovered; unknown.
• adj. That has not yet been discovered; unexplored.
• v. simple past tense and past participle of undiscover.

unexplored

• adj. which has not been explored.

unfamiliar

• adj. Strange, not familiar.
• n. An unfamiliar person; a stranger.

unheard-of

• adj. Previously unknown; unprecedented.

unidentified

• adj. Not identified; having an unknown or unnamed identity.

unmapped

• adj. Not mapped.

unnamed

• adj. Not having a name.

unsung

• adj. Which has not been lauded or appreciated.
• adj. Not sung.

unsuspected

• adj. not suspected.
• adj. that has not raised suspicion.

variable

• adj. Able to vary.
• adj. Likely to vary.
• adj. Marked by diversity or difference.
• adj. (mathematics) Having no fixed quantitative value.
• adj. (biology) Tending to deviate from a normal or recognized type.
• n. Something that is variable.
• n. Something whose value may be dictated or discovered.
• n. (mathematics) A quantity that may assume any one of a set of values.
• n. (mathematics) A symbol representing a variable.
• n. (programming) A named memory location in which a program can store intermediate results and from which…
• n. (astronomy) A variable star.
• n. (nautical) A shifting wind, or one that varies in force.
• n. (nautical, in the plural) Those parts of the sea where a steady wind is not expected, especially the parts…