Here's what rhymes with unfalsifiable.
viable liable pliable verifiable classifiable certifiable reliable justifiable unverifiable notifiable deniable rectifiable unreliable undeniable unjustifiable identifiable unidentifiable Words that almost rhyme with unfalsifiable
parietal sizable sizeable survivable advisable assignable likable likeable risible liveable desirable definable excitable realizable maniacal ascribable decidable unlikeable unliveable undesirable ammoniacal inadvisable libidinal reconcilable undefinable analyzable recyclable climbable recognizable irreconcilable indefinable cognizable describable indictable demoniacal nonassignable indescribable unrecognizable monomaniacal