say it: mah-nyuh-MEN-tuhl
monumental is an adjective meaning "relating or belonging to or serving as a monument". It carries 3 recorded senses.
relating or belonging to or serving as a monument
“the use of the arch in monumental architecture”
“monumental sculptures”
imposing in size or bulk or solidity
“massive oak doors”
“Moore's massive sculptures”
“the monolithic proportions of Stalinist architecture”
“a monumental scale”
Definitions, synonyms and semantic relations for monumental come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.