meaning of arrant
1. Notoriously or preeminently bad; thorough or downright, in a bad sense; shameless; unmitigated; as, an arrant rogue or coward.
2. Thorough or downright, in a good sense.
3. without qualification; used informally as often pejorative intensifiers; "an arrant fool"; "a complete coward"; "a consummate fool"; "a double-dyed villain"; "gross negligence"; "a perfect idiot"; "pure folly"; "what a sodding mess"; "stark staring mad"; "a thoroughgoing villain"; "utter
">nonsense"