rhizoverbBeta
DictionaryirregularityDeparture from a pattern
noun

irregularity

ih-reg-yuh-LAIR-uh-tee/ɪˌreɡjəˈlærəti/

A departure from an expected pattern or rule.

One rotated paving stone creates an irregularity in the straight row.

A straight row of identical square paving stones has one stone noticeably rotated out of alignment, making a single departure from the regular pattern immediately visible.
Etymology
irLatinnot
+regularLatinhaving rules
+ityLatinstate or quality

The pieces name nonconformity to rules, originally a violation of Church requirements for clerical office. The noun broadened to something irregular itself—a particular departure from an expected rule or pattern.

In context

Back to Ancient206:23
Because structures built for survival prioritize irregularity. They bend to terrain, to threat, to convenience.
5 HOURS OF Unexplained Ancient Archaeological Mysteries To Fall Asleep

More examples

  • The doctor notices an irregularity in his heartbeat.
  • The audit reveals several irregularities in the bidding process.
  • Small irregularities in the pattern show that the rug is handmade.

Forms

irregularity · irregularities

irregular adjective — Not following the usual pattern or rules.

Similar words

anomaly
An unexpected departure, especially one that calls for investigation.
deviation
Emphasizes departure from an established standard, pattern, or course.
violation
Specifically involves breaking a rule, law, or agreement.