A thing, especially a building, which is very large and unsightly. The new shopping mall was considered a monstrosity by the local residents.
A grossly malformed animal, plant, or person. The creature was a monstrosity, with limbs that were twisted and misshapen.
Something that is outrageously or offensively wrong. The decision to cut down the ancient forest was seen as a monstrosity by environmentalists.
The quality or state of being monstrous, especially in a moral sense. She was horrified by the sheer monstrosity of the crime.