Extreme
Obsessive
Obsessive adjective - Caused by or suggestive of an irresistible urge.
Extreme and obsessive are semantically related in overenthusiastic topic. Sometimes you can use "Extreme" instead an adjective "Obsessive".
Mutual synonyms
Both words in one sentence
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It's strongly implied Humberfloob is obsessive-compulsive about cleanliness, which would explain this seemingly extreme reaction.
Source: Film / The Cat in the Hat -
Gunslinger Girl: All of the girls qualify to the extreme (they're brainwashed to have no other thought than their handler's safety, and this always manifests in some sort of love, often obsessive).
Source: Bodyguard Crush -
He's also an obsessive neat freak, incredibly snarky, and abrasive to the extreme.
Source: Broken Ace
Cite this Source
Obsessive and Extreme. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/extreme/obsessive
Extreme & Obsessive. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/extreme/obsessive>.
Obsessive or Extreme. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/extreme/obsessive.
Google Ngram Viewer shows how "extreme" and "obsessive" have occurred on timeline