"Clingingly" is an adverb used to describe actions or behavior that are overly dependent, desperate or persistent. Synonyms for "clingingly" include clingily, tenaciously, adhesive or graspingly. Other alternatives to "clingingly" are "affectionately", "devotedly", "steadfastly", "loyally", or "compliantly". These synonyms are useful when describing the actions of someone who is seeking favor, attention or approval. "Clingingly" can also mean something that sticks closely to a particular surface, for that meaning, alternatives to the word could include "adhesively", "stickily", "attachingly" or "hookingly". Using appropriate synonyms will make your writing more varied and help to convey the intended meaning more effectively.