nonobservance

noun

non·​ob·​ser·​vance ˌnän-əb-ˈzər-vən(t)s 

: lack of observance : failure to observe something (such as a law or custom)

supports the state's nonobservance of daylight savings time

nonobservance of safety regulations

Examples of nonobservance in a Sentence

Recent Examples on the Web

The Supreme Court’s landmark decision in that case recognized the continued existence of the Muscogee (Creek) Nation’s reservation in Oklahoma after roughly a century of nonobservance by state and federal officials. —Matt Ford, The New Republic, 24 May 2021

Word History

First Known Use

15th century, in the meaning defined above