Solution

IMMEDIATELY

3 clues

At once

Word class: Adverb
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles
Topics: Time - Age - Chronology

Other solutions to At once

Right away

Word class: Adverb
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles
Topics: Time - Age - Chronology

Other solutions to Right away

Without delay

Word class: Adverb
Nature of clue: Description
Difficulty: Very easy
Sources: Boatload Puzzles
Topics: Time - Age - Chronology

Other solutions to Without delay

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