- downright; thorough; unmitigated; notorious: an arrant fool.
- wandering; errant.
Origin of arrant
1350–1400; Middle English, variant of errant
SynonymsSee more synonyms for arrant on Thesaurus.com
1. thoroughgoing, utter, confirmed, flagrant.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for arrantly
- utter; out-and-outan arrant fool
C14: a variant of errant (wandering, vagabond); sense developed from its frequent use in phrases like arrant thief (hence: notorious)
Word Origin and History for arrantly
late 14c., variant of errant (q.v.); at first merely derogatory, "wandering, vagrant;" then (1540s) acquiring a meaning "thoroughgoing, downright, notorious."
Online Etymology Dictionary, © 2010 Douglas Harper