The crossword solutions for the term NOT ONESELF are ILL and OFF. ILL is an abbreviation for 'ILLNESS' or 'ILL', which means to be in a state of poor health due to disease, injury, or other medical condition. OFF is an abbreviation for 'OFFENSE' or 'OFF', which means to do something wrong or illegal. Together, these two words indicate that someone is not feeling well or is doing something wrong, which is not characteristic of their usual behavior.