odd or unusual.
The definition of a circumstance is a state that you are in, the details surrounding a situation, or a condition that causes something to occur. (noun) An example of a circumstance is when you are very poor.
"They happened to be partnered together by circumstance."
Synonyms for CIRCUMSTANCE: event, occurrence, incident, instance, happening, episode, case.
The disruption of an individuals normal physiological state due to an event or circumstance is known as stress.
When an event or circumstance "recurs," this means that the event occurs or happens again. Recurring can also mean an event, image, or circumstance coming back to your mind - such as a "recurring dream." The etymology is a Latin term meaning to recede.
the Roman occupation of Judaea
That would be referred to as an observation.
You may mean a 'poor environment'. -That refers to a set of surrounding circumstance that is unsuitable .
A contingency plan is what to do if a possible future event or circumstance suddenly changes.
They are attempts to describe scientifically or otherwise some process/event/circumstance.
the circumstances surrounding the event
Data, a measurement, objective, reality/