re‧gu‧lar‧i‧ty plural regularities
when the same thing keeps happening often, especially with the same amount of time between each occasion when it happens:
Climate change is disrupting the regularity of the seasons.
with alarming/increasing etc regularity
Our team kept losing with monotonous regularity (=in a way that seems boring or annoying).
2 [uncountable and countable]
when something is arranged in an even way:
the regularity of his features