Synonyms|117Antonyms|62|Broader|19Narrower|18Related|120

25 entries under expression topic. ×

6
all of a sudden(adjective, idiom, surprising, not expected)
4
all at once(adjective, idiom, surprising, not expected)
4
not predicted(adverb, unpredictable, surprising, unanticipated)
4
unprepared for(adverb, unpredictable, surprising, unanticipated)
4
without warning(adjective, extraordinary, wonderful, surprise)
2
at the drop of a hat(idiom, not expected, not planned, unhoped)
2
against all odds(idiom, not expected, not planned, unhoped)
2
against the odds(idiom, not expected, not planned, unhoped)
2
as the spirit moves(idiom, not expected, not planned, unhoped)
2
come out of left field(idiom, not expected, not planned, unhoped)
2
from left field(adjective, idiom, extraordinary, wonderful)
2
from nowhere(idiom, not expected, not planned, unhoped)
2
if the spirit moves(idiom, not expected, not planned, unhoped)
2
it's just one of those things(idiom, not expected, not planned, unhoped)
2
just like that(idiom, not expected, not planned, unhoped)
2
make something up as you go along(idiom, not expected, not planned, unhoped)
2
on autopilot(idiom, not expected, not planned, unhoped)
2
on the hoof(idiom, not expected, not planned, unhoped)
2
on the spur of the moment(idiom, not expected, not planned, unhoped)
2
only to do something(idiom, not expected, not planned, unhoped)
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APASmart Define. (2015). out of the blue thesaurus. Retrieved September 27, 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 27, 2026).
HarvardSmart Define 2015, out of the blue thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/out_of_the_blue/thesaurus/synonyms>.
MLASmart Define. "out of the blue thesaurus" 3 August 2015. Web. 27 September 2026. <https://smartdefine.org/out_of_the_blue/thesaurus/synonyms>