Invisible

Webster's Dictionary of the English Language

·adj Incapable of being seen; not perceptible by vision; not visible.

II. Invisible ·noun An invisible person or thing; specifically, God, the Supreme Being.

III. Invisible ·noun A Rosicrucian;

— so called because avoiding declaration of his craft.

IV. Invisible ·noun One of those (as in the 16th century) who denied the visibility of the church.