Sure! Let’s break down the word "groundless."
Groundless (adjective) means something that is not based on any good reason or fact. If a claim, belief, or feeling is groundless, it means there is no solid evidence to support it.
In more complex writing, you might see "groundless" used in legal or academic discussions to criticize claims that lack evidence or to highlight the importance of basing conclusions on factual information.
While "groundless" primarily refers to the lack of evidence or basis for beliefs or claims, it can also imply a sense of irrationality or unreasonable behavior.
There are no direct idioms or phrasal verbs that use "groundless," but you might encounter phrases like "groundless accusations" or "groundless fears," which convey similar meanings.
In summary, "groundless" describes something that lacks a solid foundation in reality or logic. It is often used to criticize claims or beliefs that are not supported by facts.