0 impossible to describe, especially because of being extremely good or bad:
1 impossible to describe, esp. because extremely good or bad:
The stench was indescribable.
Some of the transport scandals in the country are really almost indescribable.
It is so crazy as to be indescribable; that is what ought to be said about this.
Those 11 people were living in conditions of almost indescribable squalor.
The mix of people in such blocks of flats sometimes causes indescribable trouble.
She has also been caused indescribable frustration and anguish.
Schoolboys in any case are at present treated with an indescribable severity which crushes their spirits and leaves them unnourished.
He told us that the almost total systematic destruction of many of the war industries was indescribable.
The mess is indescribable and the stench detectable up to 5 miles away when the wind is in the wrong direction.