irresponsibility
ir·res·pon·sibility
noun
1.
a form of untrustworthiness; the trait of lacking a sense of responsibility and not feeling accountable for your actions
Origin
From ir- + responsibility or irresponsible + -ity.
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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.