uglify

verb

1. (transitive)To make ugly; to destroy or worsen the appearance or attractiveness of.

   “She uglifies every thing near her.”

   “These guys around that block had this thing about how I was uglifying the neighborhood.”

2. (intransitive)To become ugly.

   “Inevitably those bodies age and uglify under her influence, but if they are outstandingly beautiful at the outset, that process takes longer.”

3. Synonym of minify.