irresponsible

adj.

不负责任的；不可靠的，缺乏责任心；[法律] 无责任能力的；无需对更高一级权力负责的

n.

没有责任感的人；[法律] 无责任能力的人；不被列入考虑的人；

复数：irresponsibles

1. Nothing can excuse such irresponsible behaviour.
   没有理由可以为这样不负责任的行为辩解。
2. But he turned out to be immature and irresponsible.
   但结果他是个不成熟和不负责任的人。
3. Why can't you just sit and play mah-jongg with the rest of us instead of going out and cavorting with your irresponsible brothers?
   你为什麽不坐下来和我们这些人打麻将，而非得出去和你那些不可靠的的弟兄鬼混呢？

Irresponsible authorship and wasteful publication
The Deflation Bias and Committing to Being Irresponsible
Responsible and irresponsible use of very-low-calorie diets in the treatment of obesity.
CEO risk-taking incentives and socially irresponsible activities
A Free Irresponsible Press: Wikileaks and the Battle over the Soul of the Networked Fourth Estate
Socially Irresponsible and Illegal Behavior and Shareholder WealthA Meta-Analysis of Event Studies
The irresponsible expert witness: a failure of biomedical graduate education and professional accountability
Employer’s Use of Social Networking Sites: A Socially Irresponsible Practice
Is Corporate Social Responsibility (CSR) Associated with Tax Avoidance? Evidence from Irresponsible CSR Activities
The effect of culture on consumers' willingness to punish irresponsible corporate behaviour: applying Hofstede's typology to the pun...