1
inspiring(unusual, new, fresh, fundamental, novel)
1
legendary
1
marvellous
1
mythical
1
off-the-wall
1
only(extraordinary, remarkable, single, singular, particular)
1
originative(unusual, fresh, fundamental, novel, unique)
1
passing strange
1
portentous
1
prime
1
prototypal
1
quaint
1
quick(unusual, new, fresh, fundamental, novel)
1
ready(unusual, new, fresh, fundamental, novel)
1
record
1
sensitive(unusual, new, fresh, fundamental, novel)
1
stupefying
1
substantial
1
sui generis(adjective, exceptional, original)
1
unbelievable
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APASmart Define. (2016). unprecedented thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unprecedented/thesaurus/synonyms
ChicagoSmart Define. 2016. "unprecedented thesaurus" https://smartdefine.org/unprecedented/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, unprecedented thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unprecedented/thesaurus/synonyms>.
MLASmart Define. "unprecedented thesaurus" 15 January 2016. Web. 25 September 2026. <https://smartdefine.org/unprecedented/thesaurus/synonyms>