1.
relating or belonging to or serving as a monument
the use of the arch in monumental architecture
monumental sculptures
2.
of outstanding significance
Einstein's monumental contributions to physics
3.
imposing in size or bulk or solidity
a monumental scale
The Pentagon, in Arlington, Virginia, has twice as many bathrooms as is
necessary. When it was built in the 1940s, the ste of Virginia still
had segregation laws requiring separate toilet facilities for blacks and
whites.
