Which term refers to the ability to deal with others without creating hostility?

The term that best refers to the ability to deal with others without creating hostility is tact. Tact involves understanding and appropriately responding to different situations and people in a way that communicates respect and consideration. It is crucial in maintaining positive relationships and minimizing conflict, especially in sensitive or difficult conversations. Using tactful communication helps convey messages without offending or alienating others, making it an essential skill in leadership and interpersonal interactions.

In contrast, while assertiveness is important in expressing one's needs and opinions, it can sometimes lead to confrontation if not executed with sensitivity. Diplomacy is closely related to tact but often involves formal negotiations or management of relationships between entities like countries or organizations. Negativity, on the other hand, typically refers to an adverse or pessimistic attitude, which clearly contradicts the ability to engage constructively with others.