irresponsible

1. Marked by a lack of responsibility: irresponsible accusations.
2. Lacking a sense of responsibility; unreliable or untrustworthy.
3. Law Not mentally or financially fit to assume responsibility.
4. Not liable to be called to account by a higher authority.

1. One who has no sense of responsibility.
2. Law One who is mentally or financially unfit to assume responsibility for one's actions.
3. One who is unlikely to be called to account by a higher authority.

Related Forms:

• irˌre·sponˌsi·bilˈi·ty, irˌre·sponˈsi·ble·ness noun

• irˌre·sponˈsi·bly adverb