From Longman Dictionary of Contemporary Englishunder/given the circumstancesunder/given the circumstances (also in the circumstances British English)SITUATION used to say that a particular situation makes an action, decision etc necessary, acceptable, or true when it would not normally beIt’s the best result that could be expected under the circumstances. →circumstance
Examples from the Corpus
under/given the circumstances• Their disciplined behavior under the circumstancesimpressed my father.• Besides, under the circumstances, the risk had to be taken.• Especially under the circumstances and all.• He made some measure of pass at me. Given the circumstances of a cheesedip, it was cheering.• He said that he felt that its terms were the best obtainableunder the circumstances.• Perhaps under the circumstances it made sense to remain in the one place.• Well given the circumstances who can blame them.