The purpose of the present study was to examine how personal characteristics (e.g., loneliness, interpersonal competence) and social characteristics (e.g., marginality) contributed to dropout risk among undergraduate students. The respondents (n=127 undergraduates) completed a questionnaire packet to assess all of the variables. Regression analysis indicated that loneliness was not related to dropout risk; interpersonal competence and marginality were unique predictors of risk. The findings suggested that personal and social characteristics are relevant to dropout, and students might be more proactive in addressing risk than previously presumed. Implications of the findings for research and student services are discussed.