1. the quality or state of being without a foundation, support, or factual basis
Usage: abstract noun; typically used in formal or academic contexts

Examples

• The baselessness of the rumor became clear once the facts were examined.
• Critics pointed out the baselessness of the company's claims about the product's effectiveness.
• Her argument suffered from obvious baselessness and lacked any supporting evidence.
• The baselessness of his accusations made them easy to dismiss.
• Scientists rejected the theory due to its baselessness and lack of empirical support.
• The baselessness of the conspiracy theory was exposed by investigative journalists.