onerous /onˈə-rəs or ōˈnə-rəs/

1. Burdensome
2. Oppressive

onˈerously adverb

onˈerousness noun

• squabbish
• squabble
• squabbled
• squabbler
• squabblers
• squabbles
• squabbling
• rubidiums
• rubidium-strontium dating
• rubied
• rubier
• rubies
• rubiest
• rubified
• rubify
• rubifying
• rubiginose
• rubiginous
• Rubik's Cube
• rub in
• rubin
• rubine
• rubineous
• rubines
• rubins