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