arduous /ärˈdū-əs/

1. Steep, difficult to climb
2. Difficult to accomplish
3. Laborious

ardˈuously adverb

ardˈuousness noun

• circumlocutes
• circumlocuting
• circumlocution
• circumlocutional
• circumlocutionary
• circumlocutionist
• circumlocutionists
• Circumlocution Office
• circumlocutions
• circumlocutory
• circumlunar
• circummure
• circummured
• circummures
• circummuring
• circumnavigable
• circumnavigate
• circumnavigated
• circumnavigates
• circumnavigating
• circumnavigation
• circumnavigations
• circumnavigator
• circumnavigators
• circumnutate