Self-neglectful is a term used to describe someone who fails to take care of themselves adequately. This can refer to neglect of physical, emotional, or mental needs, and can lead to serious health problems over time. Synonyms for self-neglectful include self-neglecting, self-abusive, self-destructive, self-harming, and self-imperiling. These terms all describe a behavior pattern where a person neglects their own well-being, possibly due to mental health issues or addiction. It is essential for anyone who recognizes these tendencies in themselves or a loved one to seek professional help. Neglecting one's self can lead to chronic health issues, substance abuse, and ultimately a lower quality of life.