The word 'most discomposing' refers to something that is extremely disturbing or causing great discomfort. The antonyms for this word would be 'comforting', 'soothing', 'calming' and 'relaxing'. These words describe something that has a harmonizing or pacifying effect on the mind and body. For instance, a relaxing massage can be described as a comforting experience. Similarly, a soothing song can alleviate anxiety and calm the nerves. Therefore, while most discomposing elements can cause distress, these antonyms can help in calming and easing the mind, body and soul.