Meaning of arrant

(adj) 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 thorough nuisance"; "a thoroughgoing villain"; "utter nonsense"; "the unadulterated truth"