UNPRECEDENTED
Source: 566, 567
unprecedented. Unprecedented, a. not having a precedent, new
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Un‐prec″e‐dent‐ed (?), a. Having no precedent or example; not preceded by a like case; not having the authority of prior example; novel; new; unexampled. — Un‐prec″e‐dent‐ed‐ly, adv.