The term "innocuous" refers to something that is harmless or not likely to cause any adverse effects. It is often used to describe actions, statements, or substances that do not pose a threat or danger. For example, an innocuous comment in a conversation is one that is neutral and unlikely to offend anyone. In various contexts, such as medicine or environmental science, innocuous substances are those that do not produce harmful effects on health or the ecosystem. For instance, certain chemicals may be considered innocuous if they do not react negatively with other compounds or if they are safe for human exposure.