unprecedented Meaning, Definition & Usage

  1. adjective having no precedent; novel
    • an unprecedented expansion in population and industry

WordNet


Un*prec"e*dent*ed adjective
Definitions
  1. 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.

Webster 1913