baseless

Adjective

baseless (not comparable)

1. Of reasoning: based on something that is not true, or not based on solid reasons or facts; unfounded; without a basis.
   • baseless accusations; baseless rumors
   • But Rodríguez says, “Neither the law nor the facts support Senator Grassley’s baseless allegations and extrapolated conclusions.2016 January 31, “Is Huma Abedin Hillary Clinton’s Secret Weapon or Her Next Big Problem?”, in Vanity Fair, archived from the original on 09 Feb 2017, retrieved 21 Jan 2016

   Synonyms:

   groundless, unfounded, unsupported

2. Without a physical base.
   • More significant still — and most obviously in debt to the painterly imagination — this floating statue is the first baseless statue ever made. It is as though Bernini had taken Michelangelo's 'Pieta' and made it fly.2009, Penelope Curtis, On the meanings of sculpture in painting, volume 1, page 18