* Careful: This is a general antonym, emphasizing attention to detail and avoiding mistakes.
* Diligent: This implies hard work and dedication to a task.
* Attentive: This highlights being aware of surroundings and details.
* Responsible: This suggests taking ownership of actions and their consequences.
* Conscientious: This emphasizes a strong sense of duty and moral obligation.
* Thorough: This signifies completeness and attention to all aspects of a task.
The best antonym will depend on the specific situation and the intended meaning.