The term 'behind time' can be described by four different crossword solutions: SLOW (4 letters), LATE (4 letters), OVERDUE (7 letters), and TARDY (5 letters). SLOW means to move or act at a lower speed than usual, while LATE means to arrive or happen after the expected or usual time. OVERDUE is an adjective that describes something that should have happened or been done before now, and TARDY is an adjective that describes someone who arrives LATE. All of these words describe the same concept of being behind schedule or not meeting a deadline.