groundless
adjective
[ ˈɡraʊn(d)ləs ]
• not based on any good reason.
• "your fears are quite groundless"
Similar:
baseless,
without basis,
without foundation,
foundationless,
ill-founded,
unfounded,
unsupported,
uncorroborated,
unproven,
not backed up,
empty,
idle,
vain,
chimerical,
imaginary,
illusory,
false,
unsubstantiated,
unwarranted,
unjustified,
unjustifiable,
uncalled for,
unprovoked,
without cause,
without reason,
without justification,
unreasonable,
irrational,
illogical,
unsound,
unreliable,
questionable,
misguided,
spurious,
specious,
fallacious,
erroneous,
Origin:
Old English grundlēas (see ground1, -less).
