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Webster 1913 Edition

Adj.

Not equaled; unmatched; unparalleled; unrivaled; exceeding; surpassing; – in a good or bad sense;

as,

unequaled

excellence;

unequaled

ingratitude or baseness

[Written also

unequalled

Adj.

Not to be equaled; unparalleled; unrivaled; in a good or bad sense; as unequaled excellence; unequaled ingratitude or baseness.

unequaled ‎(not comparable)