(of a person, attitude, or action) not showing a proper sense of responsibility.

[tex]\large\dag\sf\red{By \: Divyanshu}[/tex]

Verified answer

Explanation:

: lacking a sense of responsibility. b : said or done with no sense of responsibility irresponsible accusations. c : unable especially mentally or financially to bear responsibility. d : not answerable to higher authority an irresponsible dictatorship