1. monumental

adjective. (ˌmɑːnjəˈmɛntəl, ˌmɑːnjəˈmɛnəl, ˌmɑːnjuːˈmɛntəl) Of outstanding significance.

2. monumental

adjective. (ˌmɑːnjəˈmɛntəl, ˌmɑːnjəˈmɛnəl, ˌmɑːnjuːˈmɛntəl) Imposing in size or bulk or solidity.