extraneous

Meaning

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

Concepts

extraneous

external

foreign

extrinsic

immaterial

inessential

outside

orthogonal

irrelevant

alien

outward

impertinent

strange

side

superfluous

unconnected

exterior

irrelevent

dispensable

needless

optional

peripheral

unessential

unneeded

unrequired

extra

not closely connected

fifth

inorganic

outlying

inapt

irrelative

irrespective

unfamiliar

unrelated

exoteric

outer

outsider

tramontane

importance

important

material

nonessential

tangential

trifling

adscititious

stranger

insignificant

negligible

nonsignificant

unimportant

extern

outdoor

superficial

squarelike

Pronounced as (IPA)

/ɛkˈstɹeɪ.ni.əs/

Etymology

From Latin extrāneus (“from without, strange”). Doublet of strange. Cognate with estrange (verb), Spanish extraño.