Synonyms|295Antonyms|79|Broader|4Narrower|0Related|547
6
fluky(adjective, chance, fortunate, haphazard, unplanned)
6
supervenient(adjective, surface, incidental)
6
supplemental
5
ancillary
5
lucky(adjective, fortunate, opportune, blessed, accidental)
5
occasional(adjective, chance, secondary, subsidiary, related)
5
supplementary
5
unessential
4
auxiliary
4
circumstantial
4
collateral
4
indirect
4
non-essential
4
nonessential(adjective, outside, extrinsicality)
4
serendipitous(adjective, happy, chance, fortunate, opportune)
4
subordinate
4
superfluous
4
unexpected(adjective, chance, unplanned, unintentional, accidental)
4
unforeseen(adjective, chance, unplanned, unintentional, accidental)
4
unplanned(adjective, chance, planned, haphazard, unintentional)
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APASmart Define. (2015). adventitious thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/adventitious/thesaurus/synonyms
ChicagoSmart Define. 2015. "adventitious thesaurus" https://smartdefine.org/adventitious/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, adventitious thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/adventitious/thesaurus/synonyms>.
MLASmart Define. "adventitious thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/adventitious/thesaurus/synonyms>