without basis

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 foundation

correct logical rational reasonable right sensible true wise

meaningful

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 foundation

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

founded proven substantiated supported