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unprecedented

adjective

ʌnˈprɛsɪˌdɛntɪd

Meaning

Never done or known before; without previous example.

Unprecedented advancements in science changed human lives.

extraordinary, groundbreaking, unparalleled, remarkable

expected, predictable, ordinary, typical

clearly noticeable or significant

a large number of

widespread or commonly occurring

strong and healthy, especially of an elderly person

Not able to be undone, changed, or reversed.

extreme; severe; having a strong or far-reaching effect