The term "diarrheic" refers to a condition characterized by frequent and liquid bowel movements. Antonyms for such a word can include "constipated", "bunged up", "irregular", or "blocked." These terms indicate a lack of liquid or difficulty passing stool, resulting in infrequent bowel movements. Constipation is common among people who do not get enough fiber, do not drink enough water, or lead a sedentary lifestyle. It can cause discomfort and result in bloating, gas, and abdominal pain. However, antonyms for "diarrheic" also include "normal," "regular," or "healthy," which all indicate neither diarrhea nor constipation, but rather, a stable bowel movement pattern.