When we talk about different situations or conditions, we can use a variety of synonyms to express the same idea. Some of the common phrases that we can use instead of "in different circumstances" include "under different conditions," "in diverse situations," "in varying settings," "in dissimilar scenarios," and "in alternate scenarios." Each of these expressions carries more or less the same meaning as "in different circumstances" and can be used interchangeably to convey contextual change or variability. These synonyms allow us to add variety and depth to our language, making it more expressive and engaging.