Good-for-nothingness, also known as worthlessness, ineptitude, and incompetence, is a term used to describe lack of skill, ability, or usefulness. It can also be referred to as inadequacy, incapacity, or inability to perform a task or meet a requirement. Synonyms for good-for-nothingness also include unproductiveness, futility, and inefficiency. Some other options are uselessness, inability, and incompetence. Worthlessness may be another synonym, which refers to a lack of value or usefulness. Overall, there are numerous words that can be used to describe good-for-nothingness, but they all share the idea of lacking in skill or usefulness.