2
heaven-sent
2
hit-or-miss(adjective, random)
2
jammy(adjective, good, happiness, glad, success)
2
non-essential
2
sudden(adjective, extraordinary, wonderful, shocking, astonishing)
2
supervenient(adjective, incidental)
2
timely(appropriate, happy, fortunate, fitting, opportune)
2
uncalculated(adjective, chance, unintentional, accidental, unintended)
2
unforeseeable
2
unneeded(adjective, casual, useless, extra, worthless)
2
unpredicted(adjective, extraordinary, wonderful, chance, shocking)
1
Saturnian(adjective, good, happiness, glad, success)
1
abrupt
1
accessory
1
additional
1
affluent(happy, lucky, providential)
1
all systems go(expression, idiom, happy, fortunate, opportune)
1
appropriate(fitting, favorable)
1
appurtenant
1
apt(appropriate, fitting, favorable)
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APASmart Define. (2015). fortuitous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/fortuitous/thesaurus/synonyms
ChicagoSmart Define. 2015. "fortuitous thesaurus" https://smartdefine.org/fortuitous/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, fortuitous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/fortuitous/thesaurus/synonyms>.
MLASmart Define. "fortuitous thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/fortuitous/thesaurus/synonyms>