unfounded Synonyms

baseless wild unwarranted groundless idle unproved ungrounded unprovoked misguided wrong uncalled-for unreasonable unreasoned unwarrantable untruthful untrue unsound unverified unsustainable unsubstantiated unscientific unmeritorious unexcused uncorroborated unattested unproven unjustifiable untenable ill-founded unjustified unsupported unconfirmed superstitious spurious speculative gratuitous foundationless flawed fictitious faulty false fallacious erroneous deluded concocted chimerical causeless casuistic fabricated illogical