Necklike is a descriptive term that refers to something resembling a neck in some way. However, there are a variety of other words that can be used as synonyms for this term depending on the context in which it is used. For example, you might use words like tapered, cylindrical, or elongated if you were describing a necklike object with a narrow shape. Alternatively, you might choose to use terms like swan-like, serpentine, or sinuous if you were describing a neck that had curves or undulations. Other potential synonyms for necklike could include terms like slender, graceful, or agile, each of which might be used to describe some other aspect of the object or creature in question.