578 entries under adjective topic. ×

3
first(superior, unusual, important, rank)
3
generous(large, considerable)
3
glaring
3
haughty(importance, valuable, main, notable)
3
healthy(big, important, substantial, definite)
3
helpful(useful, valuable, effective, beneficial)
3
high-up(importance, valuable, main, notable)
3
highest(rank, post, status, main)
3
illustrious(outstanding, prominent, remarkable, notable)
3
indicatory(characteristic, representative, telling, ominous)
3
key-note(importance, valuable, main, notable)
3
meritorious
3
obvious(clear, substantial, definite, evident)
3
older(rank, post, status, age)
3
patent(clear, unusual, important, exceptional)
3
plentiful(comfort, rich, well, convenient)
3
potent(clear, strong, important, powerful)
3
pre-eminent
3
prodigious(extraordinary, unusual, important, strange)
3
profound
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APASmart Define. (2016). significant thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/significant/thesaurus/synonyms
ChicagoSmart Define. 2016. "significant thesaurus" https://smartdefine.org/significant/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, significant thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/significant/thesaurus/synonyms>.
MLASmart Define. "significant thesaurus" 4 March 2016. Web. 24 September 2026. <https://smartdefine.org/significant/thesaurus/synonyms>