unprecedented (adjective) unprecedented: exceptional, original
Sinonime: aberrant,
abnormal,
anomalous,
bizarre,
eccentric,
exotic,
extraordinary,
fantastic, freakish,
idiosyncratic,
marvelous,
miraculous,
modern,
new, newfangled,
novel,
odd, out-of-the-way,
outlandish, outré,
preternatural,
prodigious,
remarkable,
signal,
singular, sui generis,
uncommon, unexampled, unheard-of,
unique,
unparalleled,
unrivaled,
unusualAntonime: known, unexceptional, unremarkable,
usual