4
symptom(noun, feature, characteristic, information, mark)
4
token(noun, adjective, feature, characteristic, information)
4
unforgettable(adjective, memorable)
4
unusual(adjective, solid, extraordinary, superior, important)
3
abundant(adjective, comfort, rich, well, convenient)
3
mark(noun, feature, characteristic, information, sign)
3
awakening(adjective, moving, touching, exciting, stirring)
3
awe-inspiring(adjective, moving, unusual, strange, exceptional)
3
beneficial(adjective, friendly, sympathetic, useful, valuable)
3
big-time
3
big shot(adjective, importance, valuable, main, notable)
3
breathless(adjective, moving, touching, exciting, stirring)
3
burning(adjective, important, vital)
3
certain(adjective, superior, energetic, unusual, exceptional)
3
challenging(adjective, importance, valuable, main, notable)
3
charged(adjective, weighty, loaded)
3
clear(adjective, severe, sharp, forceful, expressive)
3
conclusive
3
designative(characteristic, telling, ominous, revealing, suggestive)
3
detectable(substantial, considerable)
10 years ago|34k views|share |citing 
APASmart Define. (2016). significant thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/significant/thesaurus/synonyms
ChicagoSmart Define. 2016. "significant thesaurus" https://smartdefine.org/significant/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, significant thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/significant/thesaurus/synonyms>.
MLASmart Define. "significant thesaurus" 4 March 2016. Web. 21 September 2026. <https://smartdefine.org/significant/thesaurus/synonyms>