- Definitions|2
- Thesaurus|414
- Abbreviations|0
| nonperformance(noun, dereliction) | |
| oversight(noun, crime, inattention, default, wrongdoing) | |
| retention | |
| carelessness | |
| contumacy | |
| default(noun, crime, wrongdoing, misconduct) | |
| defiance(noun, disregard, neglect, strike, breach) | |
| disloyalty | |
| indifference | |
| negligence(noun, abuse, breach, defiance, infringement) | |
| nonfeasance(noun, crime, default, wrongdoing, misconduct) | |
| offense(noun, disregard, neglect, breach, crime) | |
| recalcitrance(noun, disregard, neglect, strike, riot) | |
| refractoriness(noun, disregard, neglect, strike, riot) | |
| transgression(noun, disregard, neglect, strike, breach) | |
| trespass(noun, disregard, neglect, breach, violation) | |
| abnegation | |
| absentmindedness | |
| abuse(noun, breach, negligence, defiance, infringement) | |
| apostasy |
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| APA | Smart Define. (2015). nonobservance thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/nonobservance/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "nonobservance thesaurus" https://smartdefine.org/nonobservance/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, nonobservance thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/nonobservance/thesaurus/synonyms>. |
| MLA | Smart Define. "nonobservance thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/nonobservance/thesaurus/synonyms> |