IPA: /ˌspɛkˈteɪrɪəl/
KK: /spɛkˈteɪrɪəl/
Relating to someone who watches an event, especially a performance or a sport.
The spectatorial experience at the concert was enhanced by the stunning visuals.
Spectatorial → It is formed from "spectare" (meaning to look or watch) and the suffix "-orial" (meaning relating to or characterized by). The word "spectatorial" refers to something that is related to or characterized by watching or observing.
Think of 'spectare' meaning to 'look' or 'watch' — that's why 'spectatorial' relates to observing or watching.