The term Occludent refers to anything that obstructs or hinders the passage of something else. Its antonyms include words such as clear, open, unblock, and unimpeded. The opposite of something occluding is, therefore, something that allows for the free flow of things. For example, if we are talking about an occluded stream, its antonym would be an unobstructed waterway, whereas the antonyms of an occluded view can be an open vista or an unblocked sightline. Similarly, the antonyms of an occluded artery are an unblocked vessel or a free-flowing blood pathway, while the opposite of an occluded airway is an unimpeded respiratory passage.