Crucial Meaning

/ˈkɹuː.ʃəl/
B1

Definition, CEFR level B1, pronunciation, examples, and quiz.

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adjEssential or decisive for determining the outcome or future of something; extremely important; vital.

adjCruciform or cruciate; cross-shaped.

My courage failed me at the crucial moment.
The negotiations stepped into a crucial phase.
The next few weeks are going to be crucial.
Antonyms:
CEFR Practice Quiz
It is ____ that you submit your application before the deadline tomorrow.
CEFR Practice Quiz (Alternate)
My courage failed me at the ____ moment.

1706, from French crucial, a medical term for ligaments of the knee (which cross each other), from Latin crux, crucis (“cross”) (English crux), from the Proto-Indo-European *(s)ker- (“to turn, to bend”). 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.

"The perfume industry is facing a major problem: maintaining constant levels of quality is crucial, but it is increasingly difficult to obtain a regular supply of all the necessary natural ingredients." — 2014 March 7, Nicole Vulser, “Perfume manufacturers must cope with the scarcity of precious supplies”, in The Guardian Weekly, volume 190, number 13, page 30:
"Vocabulary provides a foundation from which grammar, phonology, and morphology emerge, and in a subject area it provides access to conceptual knowledge. Vocabulary selection for pedagogical purposes is therefore crucial." — 2018, Clarence Green, James Lambert, “Advancing disciplinary literacy through English for academic purposes: Discipline-specific wordlists, collocations and word families for eight secondary subjects”, in Journal of English for Academic Purposes, volume 35, →DOI, page 106:
"Language is crucial because it is the best weapon against violence. When children don’t have the words to express their thoughts, they raise their fists." — 2021 October 1, A Falun Dafa practitioner in France, “Using Truthfulness-Compassion-Forbearance to Guide My Young Students”, in Minghui:

Explore More B1 Vocabulary Words

CEFR Practice Quiz
It is ____ that you submit your application before the deadline tomorrow.
CEFR Practice Quiz (Alternate)
My courage failed me at the ____ moment.

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