1. A reference to holding or constituting a purely formal position or title without any real authority: "The queen of England is the titularly indicated head of the Church of England.
2. Relating to, by or regarding, a title; such as, the work's titularly popular song.
3. Etymology: from Old English titul, reinforced by Old French title, both from Latin titulus, "inscription, title".

The word originally indicated "a placard or inscription placed on an object, giving information about it"; and then, "a descriptive heading in a book or other composition".

A descriptive term for not having a title for a position, an office, nor a position in a large and powerful organization; especially, a government.