00More optionsShareSaveReportVideo vocabularyNo vocabulary matches your filterscrucialUS /ˈkruʃəl/・UK /'kru:ʃl/AdjectiveExtremely important or necessaryOf great importance to the success of something.B1More eventuallyUS /ɪˈvɛntʃuəli/・UK /ɪˈventʃuəli/AdverbAfter a long time; after many attempts; in the endAt some later time; in the futureA2More revealUS /rɪˈvil/・UK /rɪ'vi:l/Transitive VerbTo show something that was hidden beforeA2TOEICMore vastUS /væst/・UK /vɑ:st/AdjectiveBeing very large in size or amountA2TOEICMore Use EnergyUnlock All VocabularyUnlock pronunciation, explanations, and filtersUnlock