Lack of religious belief.
Lack of attention, notice, or regard.
The condition or fact of being insufficient or falling short:
Lack of importance, meaning, or worth
The act or an instance of neglecting something:
Infringement or breach, as of a law, rule, right, etc.
A customary rite or ceremony.
Find another word for nonobservance. In this page you can discover 12 synonyms, antonyms, idiomatic expressions, and related words for nonobservance, like: infidelity, inattention, failure, carelessness, indifference, neglect, disregard, laxity, negligence, slight and violation.