How would you best describe a partner who comes to work dirty and leaves trash?

Describing a partner who comes to work dirty and leaves trash as unprofessional accurately captures the behavior in a workplace context. Professionalism encompasses a range of behaviors and standards that are expected in a work environment, including personal appearance, cleanliness, and respect for shared spaces. A partner who neglects these basic expectations not only undermines their own credibility but can also impact the morale and perception of the entire team.

Unprofessional behavior typically denotes a lack of respect for the workplace and can lead to a negative impression among colleagues and clients. It signifies a disregard for the norms and standards that contribute to a professional atmosphere, making it essential for workplace harmony and productivity. In contrast to the other terms presented, "unprofessional" closely embodies the issues of appearance and behavior that align with expectations in a collaborative and organized professional setting.