IPA: /ˈɛpəˌkæl/
KK: /ˈɛpəˌkæl/
Very important or significant, often marking a major change or event in history.
The invention of the internet was an epochal moment in communication.
Epochal → It is formed from "epoch" (from Greek "epokhē", meaning a fixed point in time or a period) and the suffix "-al" (meaning pertaining to). The word "epochal" refers to something that is significant or important in a particular period of time.
Think of an 'epoch' as a significant period in time, and the '-al' means pertaining to it — so 'epochal' describes something that is important to that time.