One of the mysteries of the English language finally explained.
Synonyms of unprecedented in English:
unprecedented
See definition of unprecedented
adjective
1‘an era of warfare on an unprecedented scale’
SYNONYMS
unparalleled, unequalled, unmatched, unrivalled, without parallel, without equal
extraordinary, uncommon, out of the ordinary, unusual, outstanding, striking, exceptional, prodigious, abnormal, singular, remarkable, unique, anomalous, atypical, untypical, freakish
unheard of, unknown, novel, original, new, groundbreaking, revolutionary, pioneering
informal one of a kind
rare unexampled
ANTONYMS
normal, common