57 entries under astonishing topic. ×

8
eye-opening(adjective, awful, amazing, shocking)
7
thrilling(adjective, extraordinary, wonderful, fantastic)
4
exceptional(adjective, extraordinary, unusual, dramatic)
4
monumental(adjective, amazing, astounding)
4
super(adjective, cool, superb, wonderful, marvelous)
4
surprising(adjective, extraordinary, unusual, amazing)
3
colossal(great, superb, amazing, neat)
3
dandy(adjective, extraordinary, dramatic)
3
stirring(adjective, extraordinary, dramatic)
2
exciting(adjective, extraordinary, wonderful, fantastic)
2
tremendous(adjective, excellent, wonderful, amazing)
1
cool(adjective, great, extraordinary, superb, wonderful)
1
divine(great, extraordinary, superb, marvelous, fantastic)
1
fab(adjective, extraordinary, unusual, superb, wonderful)
1
first-class(adjective, extraordinary, superb, wonderful, marvelous)
1
heavy(extraordinary, unusual, strange, marvelous, amazing)
1
historic(adjective, extraordinary, dramatic)
1
memorable(adjective, extraordinary, dramatic)
1
out of this world(expression, adjective, idiom, cool, great)
1
preternatural(adjective, extraordinary, unusual, amazing)
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APASmart Define. (2016). spectacular thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/spectacular/thesaurus/synonyms
ChicagoSmart Define. 2016. "spectacular thesaurus" https://smartdefine.org/spectacular/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, spectacular thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/spectacular/thesaurus/synonyms>.
MLASmart Define. "spectacular thesaurus" 29 March 2016. Web. 30 September 2026. <https://smartdefine.org/spectacular/thesaurus/synonyms>