Definition of "thoroughgoing"
thoroughgoing
/ˈθʌɹəˌɡəʊɪŋ/
adjective
comparative more thoroughgoing, superlative most thoroughgoing
With great attention to detail; complete, thorough.
Quotations
It must be reiterated, as, for the purpose of these Memoranda, the deep lesson of History and Time, that all else in the contributions of a nation or age, through its politics, materials, heroic personalities, military eclat, &c., remains crude, and defers, in any close and thorough-going estimate, until vitalized by national, original archetypes in literature.
1871, Walt Whitman, Democratic Vistas, New York: J.S. Redfield, page 50