Conjunctional is an adjective form of the noun "conjunction," which refers to a part of speech that connects words or groups of words together. Some synonyms for conjunctional include joining, connecting, combining, uniting, and linking. Other related words include coordinative, subordinative, and correlative, which all refer to different types of conjunctions. Using synonyms like these can help to add variety to your writing and avoid repetitive language. Additionally, knowing the different types of conjunctions and their functions can help you effectively connect ideas and create fluent, cohesive writing.