Deep
Deep adjective - Having considerable extent.
Usage example: an economist with a deep understanding of the forces that propel the global economy
Extensive and deep are semantically related. in cavernous topic. In some cases you can use "Extensive" instead an adjective "Deep", when it comes to topics like extending far back.
Both words in one sentence
- The first episode of Masters Season 4 has Missy leave the competition after cutting her finger deep enough to require extensive surgery (although she got an invitation for Season 5 out of it.)
Source: Non-Gameplay Elimination -
Sora, the protagonist from Sketchbook, is extremely shy and doesn't say much, but the viewer gets deep insights into her mind through her extensive inner monologues.
Source: Inner Monologue -
The Unknown Soldier is considered a deep analysis of the psychology of soldiers and the effects of war on people as well as the makings of a good soldier.During its writing, the Unknown Soldier saw extensive Executive Meddling by the publisher WSOY.
Source: Literature / The Unknown Soldier
Cite this Source
Extensive and Deep. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/deep/extensive
Deep & Extensive. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/deep/extensive>.
Extensive or Deep. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/deep/extensive.
Google Ngram Viewer shows how "deep" and "extensive" have occurred on timeline