1 definition by Tess Anne

A person in their mid to late twenties or older, who tries to be a scenester.

The word is derived from senile and scene.
Betty: Did you see Todd's mom?
Mia: Yeah, she has a myspace, died her hair black, and started wearing tight pants and polka dotted head bands.
Betty: She is so scenial.
by Tess Anne October 4, 2005
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