22 entries under surprising topic. ×

13
sudden(adjective, extraordinary, wonderful, shocking, surprise)
10
unforeseen(adjective, adverb, surprise, unexpected)
10
unanticipated(adjective, adverb, surprise, unexpected)
8
abrupt(adjective, unexpected, sudden)
6
all of a sudden(expression, adjective, idiom, not expected)
5
brusque(adjective, sudden, unlooked-for)
5
fast(adjective, sudden, unlooked-for)
5
rapid(adjective, sudden, unlooked-for)
5
unexpected(adjective, adverb, surprise, unpredicted)
4
quick(adjective, sudden, unlooked-for)
4
swift(adjective, sudden, unlooked-for)
4
all at once(expression, adjective, idiom, not expected)
4
not predicted(expression, adverb, unpredictable, unanticipated)
4
unexpectedly(adjective, adverb, unpredictable, subitaneous)
4
unplanned(adjective, adverb, surprise, unexpected, unprepared)
4
unprepared for(expression, adverb, unpredictable, unanticipated)
3
speedy(adjective, unpredictable, subitaneous)
3
suddenly(adjective, adverb, not expected, not planned)
3
unlooked-for(adjective, surprise, unexpected)
2
unpredicted(adjective, adverb, extraordinary, wonderful, shocking)
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APASmart Define. (2015). out of the blue thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/out_of_the_blue/thesaurus/synonyms
ChicagoSmart Define. 2015. "out of the blue thesaurus" https://smartdefine.org/out_of_the_blue/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, out of the blue thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/out_of_the_blue/thesaurus/synonyms>.
MLASmart Define. "out of the blue thesaurus" 3 August 2015. Web. 30 September 2026. <https://smartdefine.org/out_of_the_blue/thesaurus/synonyms>