adventitious

equivalents

extrinsic

synonyms

accessory

accessory

accidental

accidental

acquired

additional

additional

adscititious

adventive

aleatory

appurtenant

ascititious

auxiliary

casual

causeless

chance

chancy

circumstantial

collateral

conditional

contingent

destinal

dicey

extra

extrinsic

fatal

fatidic

fluky

foreign

fortuitous

iffy

incidental

indeterminate

inessential

nonessential

occasional

provisional

risky

secondary

spontaneous

sporadic

subsidiary

superadded

superfluous

supervenient

supervenient

supplemental

supplementary

uncaused

undetermined

same-contexts

accidental

apoptotic

coincidental

contributory

divisible

ephemeral

equivocal

exceptional

extraneous

extrinsic

factitious

fortuitous

immaterial

incidental

inseparable

negligible

pecuniary

superfluous

syntactic

trivial

unavoidable

unessential

unforeseen

untoward