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