The term 'disturbed greatly' can be summed up by the crossword solution 'ROCKED, ' which is a 6-letter word. This term is often used to describe an event or situation that has been greatly disrupted, usually by a powerful force. It can also refer to a person who has been emotionally or mentally shaken by a traumatic experience. In either case, the term 'ROCKED' implies a significant level of disruption and distress.