0
all-time(adjective, superlative, singular, supreme, unsurpassed)
0
alone(extraordinary, remarkable, single, singular, particular)
0
approaches
0
arcane(unusual, special, rare)
0
avant-garde(extraordinary, remarkable, particular)
0
baby
0
basic
0
begun
0
benchmark
0
best
0
big
0
boss
0
brainy
0
brilliant
0
causative(fundamental, novel, unique, innovative, underlying)
0
cease
0
certain(extraordinary, remarkable, particular)
0
champ
0
class unmatched(expression, idiom, dissimilarity)
0
considerable
10 years ago|11k views|share |citing 
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>