The purpose of this study is to examine whether the five-factor personality characteristics and selfesteem predict two subtypes of personal indecisiveness (exploratory indecisiveness and impetuous indecisiveness). A total of 483 students (269 female and 208 male students, 6 of the students did not state gender) studying at the various faculties of Gazi University participated in the study. The results show that both exploratory and impetuous indecisiveness are significantly and positively correlated to neuroticism, and are significantly and negatively correlated to extraversion, openness to experience, conscientiousness, and self-esteem. Exploratory indecisiveness is not correlated with agreeableness. Self-esteem was found to be the strongest predictor of exploratory indecisiveness, followed by neuroticism and extraversion. The strongest predictor of impetuous indecisiveness was found to be neuroticism, followed by self-esteem, conscientiousness, and openness to experience. The fmdings are discussed within the scope of the relevant literature.