Original: A crisis ( plural : '' crises '' ; adjectival form : '' critical '' ) ( from the Greek Î Ï Î Ï Î Ï , krisis ) is any event that is , or expected to lead to , an unstable and dangerous situation affecting an individual , group , community or whole society .
Simplified: A crisis ( plural : crises ) , coming from the Greek Î Ï Î Ï Î Ï ( krisis ) is any event that is , or expected to lead to , a dangerous or consequential situation affecting one person , an entire group , community or whole society .