'Unfounded' definitions:

Definition of 'unfounded'

adjective

Without a basis in reason or fact; "baseless gossip"; "the allegations proved groundless"; "idle fears"; "unfounded suspicions"; "unwarranted jealousy" [syn: baseless, groundless, idle, unfounded, unwarranted, wild]

Definition of 'Unfounded'

From: GCIDE

Unfounded \Un*found"ed\, a.
1. Not founded; not built or established. --Milton. [1913 Webster]
2. Having no foundation; baseless; vain; idle; as, unfounded expectations. --Paley. [1913 Webster]

Synonyms of 'unfounded'

From: Moby Thesaurus

airy,
apparent,
apparitional,
autistic,
Barmecidal,
Barmecide,
baseless,
bottomless,
chimeric,
contrary to fact,
deceptive,
delusional,
delusionary,
delusive,
delusory,
dereistic,
dishonest,
dreamlike,
dreamy,
empty,
erroneous,
fallacious,
false,
fantastic,
garbled,
gratuitous,
groundless,
idle,
ill-founded,
illusional,
illusionary,
illusive,
illusory,
imaginary,
in error,
inauthentic,
inconclusive,
indecisive,
mendacious,
miscited,
misleading,
misquoted,
misreported,
misstated,
not following,
not proved,
not true,
ostensible,
phantasmagoric,
phantasmal,
phantom,
seeming,
self-deceptive,
self-deluding,
specious,
spectral,
spurious,
supposititious,
truthless,
unactual,
unascertained,
unattested,
unauthentic,
unauthenticated,
unauthoritative,
unbased,
uncalled-for,
uncertified,
unconfirmed,
uncorroborated,
undemonstrated,
undetermined,
unestablished,
unfixed,
ungrounded,
unjustifiable,
unjustified,
unproved,
unproven,
unreal,
unreliable,
unsettled,
unshown,
unsound,
unsubstantial,
unsubstantiated,
unsupportable,
unsupported,
unsupported by evidence,
unsustainable,
unsustained,
untenable,
untested,
untried,
untrue,
untruthful,
unvalidated,
unverified,
unwarranted,
vain,
visionary,
without basis,
without foundation,
without grounds