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