arduous /ärˈdū-əs/

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

ardˈuously adverb

ardˈuousness noun

• braid
• braide
• braided
• braider
• braidest
• braiding
• braidings
• Braidism
• braids
• brail
• brailed
• brailing
• Braille
• Brailled
• brailler
• braillers
• Brailles
• braille-writer
• braille-writers
• Brailling
• Braillist
• brails
• brain
• brainbox
• brainboxes