Undignified is a word used to describe something that is unseemly, inappropriate or lacking in decorum. There are several synonyms that can convey a similar meaning to undignified. Some of the synonyms include: shameful, indecorous, disgraceful, unbecoming, unworthy, ignoble, embarrassing, humiliating, unacceptable, improper, vulgar and unrefined. All of these words connote a sense of impropriety or unacceptability. When choosing different words that have the same or similar meaning to undignified, it's important to consider the context in which the word is being used and the tone that is intended to be conveyed.