* Thoughtful: This is the most direct opposite, meaning showing consideration and care.
* Considerate: Emphasizes being mindful of the feelings and needs of others.
* Careful: Suggests paying attention to detail and avoiding mistakes.
* Deliberate: Implies acting with intention and purpose.
* Attentive: Indicates paying close attention to what is happening around you.
* Mindful: Means being aware of your thoughts, feelings, and actions.
The best antonym will depend on the specific situation and the intended meaning.