irresponsibleness n 1: a form of untrustworthiness; the trait of lacking a sense of responsibility and not feeling accountable for your actions [syn: {irresponsibility}, {irresponsibleness}] [ant: {responsibility}, {responsibleness}]
irresponsibleness \irresponsibleness\ n. the habitual failure to behave in a responsible manner; irresponsibility. Syn: irresponsibility. [WordNet 1.5]