1706, from French crucial, a medical term for ligaments of the knee (which cross each other), from Latin crux, crucis (English crux), from the Proto-Indo-European *(s)ker-.
The meaning “decisive, critical” is extended from a logical term, Instantias Crucis, adopted by Francis Bacon in his influential Novum Organum (1620); the notion is of cross fingerboard signposts at forking roads, thus a requirement to choose.Pronunciation
- IPA: /ˈkɹuː.ʃəl/
- Essential or decisive for determining the outcome or future of something; extremely important.
- Synonyms: Thesaurus:important
- The battle of Tali-Ihantala in 1944 is one of the crucial moments in the history of Finland.
- A secure supply of crude oil is crucial for any modern nation, let alone a superpower.
- (archaic) Cruciform or cruciate; cross-shaped.
- (slang, chiefly, Jamaica) Very good; excellent; particularly applied to reggae music.
- Delbert Wilkins is the most crucial pirate radio DJ in Brixton.
- French: crucial
- German: entscheidend, kritisch, ausschlaggebend, wichtig
- Italian: cruciale
- Portuguese: crucial
- Russian: реша́ющий
- Spanish: crucial