baseless Synonyms

unfounded groundless unwarranted unsupported wild idle without substantiation unconfirmed unverified ungrounded unprovoked wrong vain unjustified ill-founded without merit without justification without cause unsubstantiated uncorroborated unattested trumped-up unproven unjustifiable untenable unwarrantable untrue unsound illogical gratuitous foundationless flimsy false fallacious empty conjectural causeless indefensible inexcusable insupportable unreasonable uncalled-for speculative specious sophistic pointless needless irrational invalid bottomless