The crossword solution for the term 'LESS GOOD' is 'WORSE, ' which is a five-letter word. 'WORSE' is an adjective that is used to describe something that is of lower quality or value than something else. It is the comparative form of the adjective 'BAD, ' and is often used to compare two things in terms of their quality or value. For example, one might say that 'this car is WORSE than that one, ' meaning that the quality or value of the first car is lower than the second.