Words similar to once-unthinkable

Example sentences for: once-unthinkable

How can you use “once-unthinkable” in a sentence? Here are some example sentences to help you improve your vocabulary:

Vatican II gave rise to a less hierarchical and more outward-looking Catholicism and set the stage for once-unthinkable innovations like plainclothes nuns and the celebration of the Mass in English and other modern languages.