Something that happens with regularity is typical and expected. Fashion trends change with regularity, which is great for stores that want to sell you a new wardrobe every year.

Regularity is the quality of being stable and predictable. If you exercise with regularity, you might work out every day. If your car breaks down with regularity, then you're probably used to taking the bus. If you add the prefix ir- to this word, you get irregularity — something unusual, out of the ordinary, or unexpected.

Definitions of regularity

n the quality of being characterized by a fixed principle or rate

“he was famous for the regularity of his habits”
irregularity, unregularity
not characterized by a fixed principle or rate; at irregular intervals
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cyclicity, periodicity
the quality of recurring at regular intervals
methodicalness, orderliness
the quality of appreciating method and system
a condition in which everything is regular and unvarying
evenness, invariability
a quality of uniformity and lack of variation
even spacing
regularity of spacing
the quality of being steady--regular and unvarying
regular recurrence, rhythm
recurring at regular intervals
organisation, organization, system
an ordered manner; orderliness by virtue of being methodical and well organized
the quality of being of uniform throughout in composition or structure
the quality of having a level and even surface
Type of:
an essential and distinguishing attribute of something or someone

n a property of polygons: the property of having equal sides and equal angles

geometrical regularity
Type of:
balance, correspondence, symmetricalness, symmetry
(mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane

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