Unacceptables can be replaced by a variety of synonyms in order to enhance the vocabulary and make the language more interesting. Some of the synonyms for unacceptables are unacceptable, intolerable, improper, unworthy, unsatisfactory, inappropriate, inadmissible, undesirable, objectionable, unsuitable, offensive and unallowable. These words can be used to express disapproval or to indicate that something is not suitable for a particular situation. It is important to use synonyms in order to express ourselves in a more nuanced way and to avoid repetition. By using synonyms for unacceptables, we can add more depth to our writing and make it more engaging for our readers.