DictionarymonolithMassive solid structure
noun

monolith

MAH-nuh-lith/ˈmɑːnəlɪθ/

A massive single block of stone.

A granite monolith stands at the entrance to the park.

One enormous, unbroken upright stone rises from a small patch of grass, with tiny wildflowers at its base providing natural scale.
Etymology

Literally “one stone,” a monolith was a monument consisting of a single large block. That image of an undivided mass supports its extended use for a massive structure treated as one uniform whole.

In context

LifesBiggestQuestions76:07
the Quarry contains a number of very large blocks that were never transported this monolith approximately 69 ft long and weighing around 1,000 tons has never been moved from where it was originally cut
3 Hours Of Ancient Megalithic Structures That Humans Could Not Have Built

More examples

  • Workers use a crane to lift the heavy monolith.
  • The ancient monolith bears an inscription on one side.
  • Three massive monoliths stand in a row beside the trail.

Forms

monolith · monoliths

monolithic adjective — Made from a single block of stone.

Similar words

boulder
A large natural rock, not necessarily shaped or placed.
megalith
A large stone used in a prehistoric monument or structure.