monumental
[adjective]
Synonyms:
- important, awesome, enormous, epoch-making, historic, majestic, memorable, significant, unforgettable
- immense, colossal, great, massive, staggering

[TahlilGaran] English Synonym Dictionary ▲

mon‧u‧ment‧al /ˌmɒnjəˈmentl◂, ˌmɒnjʊˈmentl◂ $ ˌmɑː-/ adjective

1. [usually before noun] a monumental achievement, piece of work etc is very important and is usually based on many years of work:
a monumental contribution to the field of medicine
Charles Darwin’s monumental study, ‘The Origin of Species’

2. [only before noun] extremely large, bad, good, impressive etc:
Banks and building societies were yesterday accused of monumental incompetence.
a monumental task
There was a monumental traffic jam on the freeway.

3. [only before noun] relating to a monument or built as a monument:
a monumental arch

[TahlilGaran] Dictionary of Contemporary English ▲