baselessbase‧less /ˈbeɪsləs/ adjective 
- Corrada could only have hurt himself by airing such baseless accusations.
- Invocations of popular support or consent may be baseless and even blatantly dishonest.
- Much of the presumption that surrounds Ratner's fall from grace is baseless.
- Not only mean; perhaps it was utterly baseless.
- Party chairman Chris Patten, who repeatedly urged caution, was not to know that Treasury forecasts of recovery were baseless.
- Soul Folks' nickname, Slow Folks, is not baseless.
- The charge was baseless and eventually dropped.
- We hoped that, in time, our fears would prove baseless.
► baseless rumours/charges/accusations nounbasethe basicsbasisadjectivebaselessbasicbasedverbbaseadverbbasically