Frail humanity is a phrase that refers to the fragile nature of human existence. It implies that humans are vulnerable and susceptible to harm or disease, and that their mortality is always looming. There are a number of synonyms that can be used in place of this phrase, including vulnerable humanity, fragile mortality, delicate humanity, and fragile existence. Each of these phrases conveys a sense of the fragility and vulnerability of human life, and underscores the need for compassion, grace, and support in the face of the human condition. Whether we use the phrase frail humanity or one of its many synonyms, the message remains clear: we must cherish and protect human life.