Solution

LABORIOUS

2 clues

Arduous

Word class: Common adjective
Nature of clue: Synonym
Difficulty: Easy
Region: America

Other solutions to Arduous

STRENUOUS

Strenuous

Word class: Common adjective
Nature of clue: Synonym
Difficulty: Easy
Region: America

Other solutions to Strenuous

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