eponymous

As an adjective eponymous

is of, relating to, or being the person or entity after which something or someone is named.

As a noun namesake is

one who is named after another or for whom another is named.

As a verb namesake is

to name (somebody) after somebody else.

As adjectives the difference between eponymous and homonymous

is that eponymous is of, relating to, or being the person or entity after which something or someone is named while homonymous is having the same name as another.

As adjectives the difference between titular and eponymous

is that titular is of, relating to, being, derived from, or having a title while eponymous is of, relating to, or being the person or entity after which something or someone is named.

As a noun titular

is one who holds a title.

Selfentitled is likely misspelled.

Selfentitled has no English definition.

As an adjective eponymous

is of, relating to, or being the person or entity after which something or someone is named.

As adjectives the difference between impressive and eponymous

is that impressive is making, or tending to make, an impression; having power to impress; adapted to excite attention and feeling, to touch the sensibilities, or affect the conscience; as, an impressive discourse; an impressive scene while eponymous is of, relating to, or being the person or entity after which something or someone is named.

As an adjective eponymous is

of, relating to, or being the person or entity after which something or someone is named.

As adjectives the difference between hypogynous and eponymous

is that hypogynous is (botany) of a flower, having a superior ovary, attached directly to the receptacle like other floral parts while eponymous is of, relating to, or being the person or entity after which something or someone is named.

As adjectives the difference between eponymous and generic

is that eponymous is of, relating to, or being the person or entity after which something or someone is named while generic is very comprehensive; pertaining or appropriate to large classes or groups as opposed to specific.

As a noun generic is

a product sold under a generic name.

As adjectives the difference between eponymous and anonymous

is that eponymous is of, relating to, or being the person or entity after which something or someone is named while anonymous is lacking a name; not named and determined, as an animal not assigned to any species.

As a proper noun Anonymous is

a hacktivist group opposed to internet censorship, government corruption, homophobia and Scientology.