The crossword solutions for the term DULL, MAYBE are LONG, which has four letters. The word 'LONG' can be used to describe something that is dull, maybe. It can be used to describe a situation or an object that is tedious, boring, or uninteresting. For example, someone might say that a LONG lecture was dull, maybe. It can also be used to describe something that takes a LONG time to complete, such as a LONG journey or a LONG task.