Synonyms of the word

extrinsic

• adj. external, separable from the thing itself, inessential.
• adj. not belonging to, outside of.

accidental

• adj. Not essential; incidental, secondary.
• adj. (philosophy) Nonessential to something's inherent nature (especially in Aristotelian thought).
• adj. (music) Adjusted by one or two semitones, in temporary departure from the key signature.
• adj. Occurring sometimes, by chance; occasional.
• adj. Happening by chance, or unexpectedly; taking place not according to the usual course of things; by accident,…
• adj. (geometry) Being a double point with two distinct tangent planes in 4-dimensional projective space.
• n. A property which is not essential; a nonessential; anything happening accidentally.
• n. (painting, plural only) Those fortuitous effects produced by luminous rays falling on certain objects…
• n. (music) A sharp, flat, or natural, occurring not at the commencement of a piece of music as the signature,…

adscititious

• adj. derived or acquired from something extrinsic; not part of the real, inherent, or essential nature of a…

adventitious

• adj. From an external source; not innate or inherent, foreign.
• adj. Accidental, additional, appearing casually.
• adj. (genetics, medicine) Not congenital; acquired.
• adj. (biology) Developing in an unusual place or from an unusual source.

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.

external

• adj. Outside of something; on the exterior.
• adj. Not intrinsic nor essential; accidental; accompanying; superficial.
• adj. Foreign; relating to or connected with foreign nations.
• adj. (anatomy) Away from the mesial plane of the body; lateral.
• adj. Provided by something or someone outside of the entity (object, group, company etc.) considered.

extraneous

• adj. Not belonging to, or dependent upon, a thing; without or beyond a thing; foreign.
• adj. Not essential or intrinsic.

foreign

• adj. Located outside a country or place, especially one's own.
• adj. Originating from, characteristic of, belonging to, or being a citizen of a country or place other than…
• adj. Relating to a different nation.
• adj. Not characteristic of or naturally taken in by an organism or system.
• adj. (with to, formerly with from) Alien; strange.
• adj. (obsolete) Held at a distance; excluded; exiled.
• adj. (US, state law) From a different one of the states of the United States, as of a state of residence or…
• adj. Belonging to a different organization, company etc.
• adj. (obsolete) Outside, outdoors, outdoor.
• n. A foreign person, particularly.
• n. (obsolete) A foreign ship.
• n. (obsolete) Clipping of chamber foreign: an outhouse.
• n. A foreign area, particularly.
• n. Short for various phrases, including foreign language, foreign parts, and foreign service.

inessential

• adj. Not essential.
• adj. Lacking essence or being.
• n. (often in plural) Something that is not essential.

outside

• n. The part of something that faces out; the outer surface.
• n. The external appearance of something.
• n. The space beyond some limit or boundary.
• n. The furthest limit, as to number, quantity, extent, etc.
• n. (dated, Britain, colloquial) A passenger riding on the outside of a coach or carriage.
• adj. Of or pertaining to the outer surface, limit or boundary.
• adj. Of, pertaining to or originating from beyond the outer surface, limit or boundary.
• adj. (baseball, of a pitch) Away (far) from the batter as it crosses home plate.
• adj. Reaching the extreme or farthest limit, as to extent, quantity, etc.
• adv. Outdoors.
• prep. On the outside of, not inside (something, such as a building).
• prep. Near, but not in.
• prep. (usually with “of”) Except, apart from.

unessential

• adj. Not essential; unimportant.
• adj. Void of essence, or real being.