Definition of Low Sunday in US English:

Low Sunday

noun

  • The Sunday after Easter.

    • ‘Low Sunday is the anniversary of that death, and its story is uppermost in their minds.’
    • ‘Low Sunday is often equated to low attendance.’

Origin

Perhaps so named in contrast to the high days of Holy Week and Easter.

Pronunciation

Low Sunday

/ˈlō ˈsəndā/