Being needful is the state of requiring something, or being in a situation where something is necessary. Some synonyms for being needful include essential, indispensable, crucial, vital, imperative, and necessary. All of these words imply a sense of urgency and importance in the need for something. Other synonyms for being needful might include important, significant, imperative, or requisite. Each of these words conveys the idea that something is necessary in order for things to function properly or for a situation to be resolved. Ultimately, the choice of synonym will depend on the context and the emphasis you want to place on the importance of the need.