Consider whether there is evidence to support a claim before calling it groundless. They dismissed the rumor as groundless after checking the facts.
Pro Tip 2/3
Analyzing Reason
Use 'groundless' to express skepticism about the reasoning behind a statement or action. His justification for missing the meeting was groundless.
Pro Tip 3/3
Emotional Connotation
'Groundless' often carries an implication of irresponsibility or carelessness in the person making the baseless claim. Groundless allegations can harm reputations.