Lesser Festival (Anglicanism)
Lesser Festivals are a type of observance in the Anglican Communion, including the Church of England, considered to be less significant than a Principal Feast, Principal Holy Day, or Festival, but more significant than a Commemoration. Whereas Principal Feasts must be celebrated, it is not obligatory to observe Lesser Festivals.
Source: Wikipedia — Lesser Festival (Anglicanism) (CC BY-SA 4.0)