When something is described as "more rubbishy," it means that it is of low quality, value or significance. There are several antonyms for this term that can be used depending on the context. Some possible antonyms include phrases such as "high-quality," "valuable," "impressive," "significant," "meaningful," "inspiring," or "remarkable." Other antonyms could include terms such as "pristine," "superior," "refined," "exquisite," "polished," or "expertly crafted." By using these antonyms, we can describe something that is the opposite of "more rubbishy" and emphasize its value, worth, and importance.