The term 'not long' can be described in four different ways using crossword solutions. The first is 'SOON' which is a 4 letter word meaning in the near future. The second is 'lat' which is a 3 letter word meaning behind schedule. The third is 'SHORT' which is a 5 letter word meaning lasting for a brief period of time. The fourth is 'forabit' which is a 7 letter word meaning for a SHORT while. All of these words describe something that does not last for a long period of time.