Nonfloating is a term that typically denotes something that is incapable of floating or staying afloat. However, there are various other words that you could use as synonyms for the term based on the context of the usage. Some examples of alternatives include, unmoving, immobile, stationary, inert, still, sinking, and immovable. Depending on the subject or situation, the most suitable synonym could be chosen to accurately describe the intended meaning and achieve the desired effect. By using these synonyms, you can enhance your writing, make it more interesting and diversified, and better convey the message you wish to communicate.