without foundation

absurd false groundless implausible inconsistent incorrect irrational irrelevant preposterous senseless unreasonable unscientific untenable

casuistic cockeyed fallacious fatuous faulty hollow inconclusive incongruous inconsequent invalid mad meaningless not following nutty off the wall screwy self-contradictory sophistic sophistical specious spurious unconnected unproved unsound unsubstantial wacky without basis

correct logical rational reasonable right sensible true wise

meaningful

absent negative tenuous vacant

airy baseless blank chimerical dead defunct departed dreamlike dreamy empty ethereal extinct extinguished fancied few and far between flimsy gone gossamery groundless hallucinatory hypothetical illusory imaginary imagined immaterial imponderable insubstantial legendary lost missing mythical null null and void passed away passed on perished shadowy ungrounded unreal unsubstantial vague vaporous void

actual existent existing real true

baseless deceptive fabricated false gratuitous groundless illogical misleading spurious unjustified unproven unsubstantiated untrue untruthful unwarranted

fallacious foundationless idle mendacious off-base trumped-up uncalled-for unreal vain without basis

called-for correct genuine honest justified real reasonable right true truthful warranted

founded proven substantiated supported