arduous /ärˈdū-əs/

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

ardˈuously adverb

• democrat
• democratic
• democratical
• democratically
• democratifiable
• democratisation
• democratise
• democratised
• democratises
• democratising
• democratist
• democratists
• democratization
• democratize
• democratized
• democratizes
• democratizing
• democrats
• democrat wagon
• democraty
• demoded
• demodulate
• demodulated
• demodulates
• demodulating