Dishonorableness is a word that describes conduct or behavior that is lacking in integrity and morality. There are several synonyms that could be used to replace this word, such as disreputability, shamefulness, or ignobility. Disreputability suggests a lack of respectability, while shamefulness suggests something that is unworthy of respect or honor. Ignobility, on the other hand, suggests a lack of nobility or high-mindedness. Other synonyms for dishonorableness include disgracefulness, baseness, and vileness. All of these words describe behavior that is not deserving of respect and can be used interchangeably with dishonorableness in different contexts.