Ardent sentimentality is a term that refers to a passionate and emotional attachment towards a person, thing, or idea. This can often be seen in how we express ourselves through our language, whether it's through words, actions, or emotions. However, if you're looking for some synonyms for this phrase, you could use words like fervent, zealous, ardent, heartfelt, passionate, or even enthusiastic. Each of these words can help to convey a sense of strong emotion and attachment towards something or someone, allowing you to connect with your audience on a deeper, more authentic level. So if you're looking to express your feelings in a powerful and meaningful way, consider using some of these synonyms in your writing or speech.