unprecedent

English

Etymology

From un- +‎ precedent.

Adjective

unprecedent (not comparable)

1. (proscribed) Misconstruction of unprecedented.
   • 2015, Diego R. Amancio, “Network analysis of named entity interactions in written texts”, in arXiv‎^[1]:

     The use of methods borrowed from statistics and physics has allowed for the discovery of unprecedent patterns of human behavior and cognition by establishing links between models features and language structure.

Usage notes

• Generally an error made by non-native speakers. Unprecedented is about 1,000 times more common.