base ‧ less /ˈbeɪsləs/ BrE AmE adjective
[ Word Family: noun : ↑ base , the basics, ↑ basis ; adjective : ↑ baseless , ↑ basic , ↑ based ; verb : ↑ base ; adverb : ↑ basically ]
not based on facts or good reasons – used to show disapproval SYN unfounded
baseless rumours/charges/accusations