Matter necessity or something that is essential or important can be described using various synonyms. Some commonly used synonyms are crucial, vital, indispensable, fundamental, imperative, requisite, significant, necessary, and essential. The term matter necessity is usually associated with something that is important or crucial to a particular situation or task. Crucial and vital both indicate the significance of something, while indispensable and fundamental suggest the absolute necessity of something. Imperative is used to emphasize the urgency or importance of something, while requisite suggests that something is required. Significant describes something that has great importance or impact, while necessary and essential emphasize the importance of something being required or must-have.