(s)fallible, frail, imperfect, weakwanting in moral strength, courage, or will; having the attributes of man as opposed to e.g. divine beings“I'm only a fallible human”, “frail humanity”
(s)delicate, fragile, fraileasily broken or damaged or destroyed“a kite too delicate to fly safely”, “fragile porcelain plates”, “fragile old bones”, “a frail craft”