deepgoing
/ˈdiːpɡoʊɪŋ/Definitions
1. adjective
going or extending deeply into a subject or matter; thorough, profound, and exhaustive.
“She produced a deepgoing analysis of the company’s financial situation.”
2. noun
a person who goes deeply into a subject or matter; a scholar or expert.
“The deepgoing expert was invited to give a lecture on the subject of climate change.”