The crossword solution for the term 'RIDDLED (WITH)' is 'RIFE', which is a four-letter word. RIFE is an adjective that means 'ABUNDANT' or 'TEEMING'. It is often used to describe something that is filled with a large number of things, such as a place that is full of people or a situation that is full of problems. In this context, it could be used to describe something that is 'riddled with' a large number of things.