Adjectives

(a)titular, titularyof or relating to a legal title to something“titulary rights”
(a)titularof or bearing a title signifying status or function“of titular rank”
(a)titularof or pertaining to the title of a work of art“performed well in the titular (or title) role”, “the titular theme of the book”
(a)titularof or associated with or bearing a title signifying nobility“titular dignitaries”
(s)nominal, titularexisting in name only“the nominal (or titular) head of his party”