In normal circumstances, refers to typical or expected conditions or situations. It implies that everything is functioning as it should be and there are no unusual or extraordinary factors at play.
Sentences with «normal circumstances»
The death benefit is determined at time of contract issue, and under normal circumstances does not change substantially during the lifetime of the policy. (lifeant.com)
Since we are not in normal circumstances, he does not feel or act tired, instead he becomes more energetic. (attachmentparenting.org)