pivotal
adjective /ˈpɪvətl/
/ˈpɪvətl/
- of great importance because other things depend on it
- a pivotal role in European affairs
- Accountancy, law and economics are pivotal to a successful career in any financial services area.
Oxford Collocations DictionaryPivotal is used with these nouns:- event
- figure
- moment
- …