The term 'be fretful' can be summarized by two crossword solutions: WORRY (5 letters) and STEW (4 letters). WORRY is an emotion characterized by feelings of anxiety, fear, or unease about a potential or actual problem. STEW is a type of cooking method where ingredients are cooked in liquid over low heat for a long period of time. Both of these words can be used to describe the feeling of being fretful, which is a state of being anxious or uneasy.