Solution

SWIFTLY

4 clues

Fast

Word class: Adverb
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles

Other solutions to Fast

Quickly

Word class: Adverb
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles

Other solutions to Quickly

Rapidly

Word class: Adverb
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles

Speedily

Word class: Adverb
Nature of clue: Synonym
Difficulty: Easy
Sources: Boatload Puzzles

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