Introspectiveness is a quality that refers to one's tendency or ability to introspect, or look inward. Some synonyms for introspectiveness include self-reflection, self-knowledge, self-awareness, self-examination, and self-analysis. These terms all suggest a deep understanding and contemplation of one's own thoughts, feelings, and experiences. Another related synonym is introspection itself, which can be seen as the act or process of introspecting. All these terms are useful in describing a person who is thoughtful, insightful, and introspective; someone who takes the time to examine their own inner life and gain a better understanding of themselves.