97 entries under extraordinary topic. ×

4
great(adjective, wonderful, famous, exceptional)
4
serious(adjective, great, important, outstanding)
4
uncommon(adjective, solid, unusual, wonderful)
3
characteristic(adjective, outstanding)
3
curious(adjective, solid, unusual, wonderful)
3
express(verb, adjective, make, mean, show)
3
impressive(adjective, great, solid, unusual)
3
preeminent(adjective, great, solid, unusual)
2
astonishing(outstanding, remarkable, notable, conspicuous)
2
critical(adjective, great, lively, significant)
2
eye-catching(adjective, see, rough, wonderful)
2
heavy(great, outstanding, significant, splendid)
2
historic(adjective, great, lively, outstanding)
2
incredible(outstanding, notable)
2
interesting(adjective, great, outstanding, notable)
2
marvelous(adjective, new, wonderful, exceptional)
2
noted(adjective, clear, great, solid)
2
odd(adjective, solid, unusual, new)
2
rememberable(great, outstanding, notable, unforgettable)
2
strange(adjective, solid, unusual, wonderful)
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APASmart Define. (2016). signal thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/signal/thesaurus/synonyms
ChicagoSmart Define. 2016. "signal thesaurus" https://smartdefine.org/signal/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, signal thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/signal/thesaurus/synonyms>.
MLASmart Define. "signal thesaurus" 1 March 2016. Web. 30 September 2026. <https://smartdefine.org/signal/thesaurus/synonyms>