Ar"rant (&?;), a. [OE. erraunt, errant, errand, equiv. to E. errant wandering, which was first applied to vagabonds, as an errant rogue, an errant thief, and hence passed gradually into its present and worse sense. See Errant.] Notoriously or preëminently bad; thorough or downright, in a bad sense; shameless; unmitigated; as, an arrant rogue or coward.

I discover an arrant laziness in my soul.
Fuller.

2. Thorough or downright, in a good sense. [Obs.]

An arrant honest woman.
Burton.

• Utter; complete.
       arrant nonsense!
  
• variant of errant