More uninflected is a term used to describe words that are not subject to grammatical changes such as tense or plurality. Some synonyms that can be used for this term include inflexible, unvarying, invariable, fixed, and constant. These words describe something that remains the same and does not change with different contexts or situations. They are useful when describing something that is dependable and unwavering, such as a scientific formula or a mathematical equation. In writing or speech, they can lend a sense of authority and stability to the words being used, which can be especially helpful when making an argument or presenting important information.