Unaccountableness refers to the lack of responsibility or answerability for one's actions. Synonyms for this word include irresponsibility, untrustworthiness, unanswerability, and non-accountability. When someone is unaccountable, they are not willing to take responsibility for their actions, making it difficult to rely on them or trust them. Other synonyms for unaccountableness include inaccuracy, unreliability, unreasonableness, and unscrupulousness. These words all describe behavior that is not consistent with trustworthy or reliable conduct. A sense of accountability is crucial in building trust between people, and being accountable for one's actions is an important aspect of personal and professional growth.