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KEY: Unequalled.

SYN: Matchless, unique, unparalleled, novel, new, unheard of, [See EQUAL].

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KEY: Unerring.

SYN: Infallible, sure, [See FALLIBLE].

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KEY: Unexpected.

SYN: Unforeseen, unlocked for, sudden.

ANT: Expected, provided for, foreseen.