The word "most oppugnant" means extremely repugnant or offensive. Some antonyms for this could be pleasant, agreeable, attractive, pleasing, delightful, appealing, charming, congenial, likable, and kind. When used in a sentence, the antonyms for "most oppugnant" will completely change the meaning of the sentence. For example, "The most oppugnant smell in the room" will become "The pleasant aroma in the room." It is important to know antonyms for words as they help to communicate and express clear thoughts effectively.