Solution

VITAL

3 clues

Crucial

Word class: Common adjective
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles
Topics: Medicine Pharma

Other solutions to Crucial

Essential

Word class: Common adjective
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles
Topics: Medicine Pharma

Other solutions to Essential

Necessary

Word class: Common adjective
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles
Topics: Medicine Pharma

Other solutions to Necessary

Words are categorized by artificial intelligence: there can be mistakes.