Meaning of thorough

(adj) painstakingly careful and accurate; "our accountant is thorough"; "thorough research"

performed comprehensively and completely; not superficial or partial; "an exhaustive study"; "made a thorough search"; "thoroughgoing research"

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"