crucialon Band 2also onCEFR Upper intermediate (B2)? Academic Vocabulary List (AVL)? חיוני,קריטי crucial crucial(adjective) חיוני,קריטי Crucial means extremely important. Wearing a seat belt in a car is crucial to your safety. crucially crucially(adverb) בצורה מכרעת Forms adjectiveadverb crucial crucially 1 2