irregular; unsystematic; unsteady; disorderly
regular; well-regulated; systematic; orderly
systematic; regular; routine
to break the rules; to violate the rules; to infringe the rules
to go by the rules; to observe the regulations
to abide (by the rules); to keep to the regulations
by the rules; in accordance with the regulations
naming convention; naming rule
to restrict (a person) by rule
enforcement regulations; regulations relative to the application of a law
there is no rule without exceptions
Universal Naming Convention
General Data Protection Regulation (EU, 2018); GDPR
Rules of Criminal Procedure
international health regulations
regular conjugation; weak conjugation