Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.

Class I. Words Expressing Abstract Relations
Section II. Relation
3. Partial Relation

20. Nonimitation.

   NOUN:NONIMITATION, no imitation; originality; creativeness.
   ADJECTIVE:UNIMITATED, uncopied; unmatched, unparalleled; inimitable [See Superiority]; unique, original, archetypal, prototypal, prototypical, primordial, creative, untranslated; exceptional, rare, sui generis [L.], uncommon, unexampled, out-of-the-way, inusitate [rare], unwonted, recherché [F.], unordinary [rare], supernormal.
   QUOTATION:Wrapped in the solitude of his own originality.—Charles Phillips—of Napoleon