onerous /onˈə-rəs or ōˈnə-rəs/

1. Burdensome
2. Oppressive

onˈerously adverb

onˈerousness noun

• upbound
• upbounden
• upbow
• upbows
• upbraid
• upbraided
• upbraider
• upbraiders
• upbraiding
• upbraidings
• upbraids
• upbrast
• upbrasted
• upbrasting
• upbrasts
• upbray
• upbrayed
• upbraying
• upbrays
• upbreak
• upbreaking
• upbreaks
• upbring
• upbringing
• upbringings