When a specific action or event fails to produce any noticeable results or outcomes, it can be described as having no effect. However, there are several other words or phrases that can be used instead of no effect, including ineffectual, meaningless, futile, fruitless, unproductive, unsuccessful, and pointless. These words convey the idea that the effort put into the action was not worth the reward or that the intended outcome was not achieved. To effectively communicate with clarity, it is essential to expand your vocabulary beyond the basics and understand the nuances of different words. This will help you express yourself more accurately, concisely, and artistically.