verb. Simple past tense and past participle of hamper.

adjective. impeded or encumbered as if chained or fettered

"To be sure, France's 12 refineries remain hampered by strikes or a lack of crude oil, because the country's main oil terminals are blocked."

pampered  scampered  tampered  unhampered  

bound  burdened  charged  cumbered  encumbered  

hamper