Dictionary Definition
groundless adj : without a basis in reason or
fact; "baseless gossip"; "the allegations proved groundless"; "idle
fears"; "unfounded suspicions"; "unwarranted jealousy" [syn:
baseless, idle, unfounded, unwarranted]
User Contributed Dictionary
Synonyms, Antonyms and Related Words
baseless, bottomless, built on sand,
chimerical, empty, flimsy, gratuitous, hypothetical, idle, ill-founded, illusory, imaginary, inconclusive, indecisive, not following,
not proved, not well-founded, speculative, suppositional, tenuous, unascertained, unattested, unauthenticated,
unbased, uncalled-for,
uncertified,
unconfirmed,
uncorroborated,
undemonstrated,
undetermined,
unestablished,
unfixed, unfounded, ungrounded, unjustifiable, unjustified, unproved, unproven, unreasonable, unsettled, unshown, unsound, unsubstantiated,
unsupportable,
unsupported,
unsupported by evidence, unsustainable, unsustained, untenable, untested, untried, unvalidated, unverified, unwarranted, vain, without basis, without
foundation, without grounds