THOROUGHGOING
exhaustive, thorough, thoroughgoing
(adjective) performed comprehensively and completely; not superficial or partial; “an exhaustive study”; “made a thorough search”; “thoroughgoing research”
complete, arrant(a), consummate, double-dyed, everlasting, gross, perfect, pure, sodding, stark, staring, thorough, thoroughgoing, utter, unadulterated
(adjective) 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”
Source: WordNet® 3.1
Etymology
Adjective
thoroughgoing (comparative more thoroughgoing, superlative most thoroughgoing)
Complete; thorough; with great attention to detail.
Hypernyms
• going
Source: Wiktionary
Thor"ough*go`ing, a.
1. Going through, or to the end or bottom; very thorough; complete.
2. Going all lengths; extreme; thoroughplaced; -- less common in this
sense.
Source: Webster’s Unabridged Dictionary 1913 Edition