not working

baseless false inoperative irrational null unfounded unreasonable unscientific unsound untrue

bad void wrong

fallacious ill-founded illogical mad not binding nugatory null and void reasonless sophistic unreasoned

honest logical reasonable sensible sound true valid

OK good right

worthwhile worthy

bonkers broken busted defective disabled down fallen apart faulty gone to pieces haywire in disrepair in need of repair in the shop inoperable kaput kerflooey not functioning on the fritz on the shelf out out of commission out of kilter out of order out of whack run down shot spent wrecked

bonkers broken faulty haywire inoperable kerflooey malfunctioning on the blink on the bum out of commission out of kilter out of order out of whack

amiss awry bad erroneous false inaccurate misguided mistaken unsound untrue

erring fluffed goofed miscalculated misconstrued mishandled out

askew astray at fault counterfactual defective erratic fallacious faulty in error inexact misfigured not precise not right off-target on the wrong track out of commission out of line out of order perverse rotten sophistical specious spurious ungrounded unsatisfactory unsubstantial wide

OK accurate correct good honest just precise right sound true valid

acceptable appropriate decent moral suitable