obsessional C2+ Topic:Describing Qualities US /əbˈsɛʃənəl/ UK /əbˈsɛʃənəl/ See IPA manual Meanings 1 adj of or marked by an obsession; preoccupied to an unhealthy degree His obsessional tidiness drove his flatmates to distraction. Thesaurus Synonyms 1 adj · of or marked by an... obsessivecompulsivefixatedpreoccupiedconsuming ↔ Opposites indifferentdetachedcasual Word family Derived forms obsessionally Related forms obsessobsessionobsessive Etymology AI details From obsession (from Latin obsessio, from obsidere, 'to besiege, occupy') plus the suffix -al. obsidere Latin sedere Latin View etymology graph -> Topics Describing Qualities Word Formation & Derivatives External links Cambridge Dictionary Wiktionary Google Images # obsessional **Type:** Word **Level:** C2+ **Part of speech:** adj **IPA (US):** /əbˈsɛʃənəl/ **IPA (UK):** /əbˈsɛʃənəl/ ## Meanings 1. of or marked by an obsession; preoccupied to an unhealthy degree ## Examples - His obsessional tidiness drove his flatmates to distraction. ## Synonyms - obsessive - compulsive - fixated - preoccupied - consuming ## Antonyms - indifferent - detached - casual ## Derived Forms - obsessionally ## Related Forms - obsess - obsession - obsessive ## Roots and Affixes - Root: obsidere - Root: sedere ## Etymology From obsession (from Latin obsessio, from obsidere, 'to besiege, occupy') plus the suffix -al. ## AI Etymology Obsessional comes from obsession (from Latin obsessio, from obsidere, 'to besiege, occupy') plus the suffix -al. The etymological trail includes Latin obsidere and Latin sedere. As an adjective, obsessional means of or marked by an obsession; preoccupied to an unhealthy degree. The same family is visible in derived forms such as obsessionally and related forms such as obsess, obsession, and obsessive. ## Topics - Describing Qualities - Word Formation & Derivatives markdown