What term describes a state of being unsocial or avoiding social interactions?

The term "reclusive" specifically describes someone who deliberately avoids social interactions and seeks solitude. A reclusive person often chooses to live apart from others and may do so for personal reasons, such as a preference for solitude or a desire to escape social pressures and obligations. This term emphasizes a proactive choice to withdraw from social engagements rather than being forced into isolation or avoidance.

While "isolated" refers to the state of being cut off from others, it does not necessarily imply that the individual has chosen this state. "Pariah" indicates someone who is socially ostracized or rejected by a group, which is not inherently about individual choice in seeking solitude. "Loner" denotes someone who may prefer solitude and spend time alone, but it does not carry the same connotation of deliberate avoidance of social interactions that "reclusive" does. Thus, "reclusive" is the most precise term for describing a state of being unsocial or actively avoiding social interactions.