without foundation

adjective

Roget 4: unsubstantial; baseless, groundless; ungrounded; without foundation, having no foundation.    visionary etc. (imaginary) 515; immaterial etc. 137; spectral etc. 980; dreamy; shadowy; ethereal, airy; cloud built, cloud formed; gossamery, illusory, insubstantial, unreal.    vacant, vacuous; empty etc. 187; eviscerated; blank, hollow; nominal; null; inane.    ... show more

Moby thesaurus: baseless, built on sand, empty, groundless, idle, ill-founded, not well-founded, unbased, unfounded, ungrounded, unsupportable, unsupported, unsustainable, unsustained, untenable, unwarranted, vain, without basis.

debug info: 0.0261