"Good appetites" is a term used to describe the state of having a healthy and hearty appetite. If you need some synonyms that work similarly with the phrase "good appetites", here are some suggestions: voracious, ravenous, insatiable, hearty, robust, sizable, big, immense, and substantial. These words are often used to describe a healthy appetite, highlighting one's desire to eat and enjoy food. Whether for a specific occasion or as a regular habit, having a "good appetite" is a positive sign of physical and emotional wellbeing. So if someone is said to have a "good appetite", it's a clear indication that they are thriving and enjoying their food.