A grammatical expression meaning one cannot avoid doing something; compelled or obliged to do (something).
予算の不足で、計画を縮小せざる得ない状況になった。
Due to budget shortfalls, we were forced to scale down the plan.
証拠が揃っている以上、彼を疑い続けるわけにはいかず、認めざる得ないと感じた。
With the evidence assembled, I couldn't keep doubting him and felt compelled to accept it.
自然災害の影響で、出荷を遅らせざる得ないと連絡が来た。
We were notified that shipments would inevitably be delayed due to the natural disaster.