1. relating to or denoting prehistoric monuments made of large stone blocks
Usage: archaeology
2. characterized by the use of large stones in construction

Examples

• Stonehenge is perhaps the most famous megalithic monument in Britain.
• The megalithic tombs were built over 5,000 years ago.
• Archaeologists study megalithic structures to understand ancient civilizations.
• The megalithic architecture required enormous effort to transport the massive stones.
• Many megalithic sites are found throughout Europe and other parts of the world.
• The megalithic builders possessed sophisticated engineering knowledge.