Existing surroundings that affect an activity.
One of the conditions or facts attending an event and having some bearing on it
Something that happens
Something significant that happens
An attendant condition
To throw that away because of an accident of circumstance would be a tragedy.
Every circumstance now conspired to effect his fall.
It was this latter circumstance which ultimately led to its abolition.
They were men of ideas who were forced by circumstance to become soldiers.
It was now proposed that he should be accredited as Bavarian ambassador in London; but the circumstance that he was a British subject presented an insurmountable obstacle.