100 entries under adjective topic. ×

7
precipitate(unusual, quick, abrupt, rapid)
7
unintentional(chance, planned, intention, unplanned)
6
astonishing(great, excellent, superb, super)
6
astounding(great, excellent, superb, super)
6
contingent(chance, possible, liable, dependent)
6
unpredictable
5
incidental(chance, lucky, liable, unplanned)
5
remarkable(great, excellent, superb, super)
5
unforeseeable(secret, liable, dependent, depending)
5
unpremeditated(chance, intention, unplanned, accidental)
4
eye-opening(amazing, astonishing, astounding, dumbfounding)
4
precipitant(violent, fast, quick, abrupt)
4
precipitous
4
random(chance, liable, unintentional, dependent)
4
shocking
4
swift(violent, fast, quick, abrupt)
4
unhoped for(verb, expression, phrasal verb, inexpectation)
3
aleatory(accidental, unintended)
3
impetuous(violent, fast, quick, abrupt)
3
impulsive(chance, quick, shocking, astonishing)
11 years ago|4.7k views|share |citing 
APASmart Define. (2015). unforeseen thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unforeseen/thesaurus/synonyms
ChicagoSmart Define. 2015. "unforeseen thesaurus" https://smartdefine.org/unforeseen/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, unforeseen thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unforeseen/thesaurus/synonyms>.
MLASmart Define. "unforeseen thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/unforeseen/thesaurus/synonyms>