(Christianity) Belief in the Immaculate Conception of the Virgin Mary.

Having no blemish or stain; clean, clear, pure, spotless, undefiled. / (zoology) Lacking blotches, spots, or other markings; spotless, unspotted.

In an immaculate manner; in a manner free of stain or blemish; without being defiled. / In a manner free of error; in a perfect or flawless manner.

The characteristic of being immaculate; spotlessness.

immaculateness

The doctrine, in the Roman Catholic Church, that the Virgin Mary was conceived biologically but free from original sin. / December 8th (The Feast of the Immaculate Conception of Mary).

(pathology, informal) An instance of Havana syndrome