TOEFL IELTS vital Definition Absolutely necessary or essential. 日本語 絶対に必要または不可欠 Example "Water is vital for human survival." Sign in to save TOEFL PDF — $25 IELTS PDF — $25 ← visualize vitality → Study tips featuring "vital" TOEFL Academic Vocabulary: Study by Topic Boost Your IELTS Writing With Precise Vocabulary Related words TOEFL brighten GRE abash GRE abate GRE abbreviate GRE abbreviation SAT abdicate GRE abduct SAT abet GRE abhor GRE abide SAT abject TOEFL ablaze