To be forced into an action or situation because there is no alternative; used in passive, often formal contexts.
不況のため、多くの企業が人員削減を余儀なくされた。
Because of the recession, many companies were forced to cut staff.
台風の影響で、試合は中止を余儀なくされた。
Due to the typhoon, the match was forced to be cancelled.
事故で通行止めになり、急遽別ルートを使うことを余儀なくされた。
An accident closed the road, forcing us to take an alternate route on short notice.