Inadvisability is an antonym of advisability.
As nouns the difference between inadvisability and advisability
is that inadvisability
is the quality or state of being inadvisable while advisability
is (uncountable) the quality of being advisable or prudent; advisableness.
Other Comparisons: What's the difference?
The quality or state of being inadvisable.
:I had been warned of the inadvisability of disturbing sleeping dogs, so it did not surprise me when the wakened dog snarled at me.
*(quality or state of being inadvisable) foolhardiness, impropriety, imprudence, injudiciousness, rashness
(uncountable) The quality of being advisable or prudent; advisableness.
(countable) An instance of advisability; a consideration in determining overall advisability.