The crossword solutions for the term 'negligent, unconcerned' are 'CARELESS'. Negligence is a legal concept that refers to a person's failure to take reasonable care in their actions or omissions. It is often used in tort law to hold people responsible for any harm they cause to another person or property. Unconcern is a lack of interest or concern for something. It is often used to describe someone who is indifferent or apathetic towards a situation. Together, these two terms can be used to describe someone who is CARELESS and indifferent to the consequences of their actions.