monstrosity

noun3

1. •
   An organism showing abnormal development or deformity.

   • Geoffroy St. Hilaire's experiments show that unnatural treatment of the embryo causes monstrosities; and monstrosities cannot be separated by any clear line of distinction from mere variations. — 1859
2. •
   A monstrous person, thing, or act.

   • St Enoch Centre (1989) - a glass-domed monstrosity of a shopping centre - stands on the site of the station today. — 2023
3. •
   The state of being monstrous.