downright; thorough; unmitigated; notorious

an arrant fool.

wandering; errant.

adjective

absolute , blatant , glaring , notorious , out-and-out , unmitigated , [[unregeneratenotes:an errand is a short trip that is taken for a specific purpose; arrant means thoroughgoing - downright - out-and-out - extreme - notorious; errant means wandering or roving especially in search of adventure - deviating or straying from an appointed course - straying from the proper standards - moving aimlessly or irregularly]] , all-out , complete , consummate , crashing , damned , dead , downright , flat , outright , perfect , plain , pure , sheer , thorough , thoroughgoing , total , unbounded , unequivocal , unlimited , unqualified , unrelieved , unreserved , capital , egregious , gross , rank , brazen , flagrant , rascally , shameless , utter , vagrant , wicked