—n. 1. a condition, detail, part, or attribute, with respect to time, place, manner,agent, etc., that accompanies, determines, or modifies a fact or event; a modifying or influencing factor: Do not judge his behavior without considering every circumstance. 2. Usually, circumstances. the existing conditions or state of affairs surrounding and affecting an agent: Circumstances permitting, we sail on Monday. 3. an unessential or secondary accompaniment of any fact or event; minor detail: The author dwells on circumstances rather than essentials. 4. circumstances,the condition or state of a person with respect to income and material welfare: a family in reduced circumstances. 5. an incident or occurrence: His arrival was a fortunate circumstance. 6. detailed or circuitous narration; specification of particulars: The speaker expatiated with great circumstance upon his theme. 7. Archaic.ceremonious accompaniment or display: pomp and circumstance. 8. under no circumstances, regardless of events or conditions; never: Under no circumstances should you see them again. 9. under the circumstances, because of the conditions; as the case stands: Under the circumstances, there is little hope for an early settlement.Also,in the circumstances.
—v.t. 1. to place in particular circumstances or relations: The company was favorably circumstanced by the rise in tariffs. 2. Obs. a. to furnish with details.
b. to control or guide by circumstances.