Sappily is an adverb that describes something that is overly sentimental or corny. Some synonyms for this word include cloyingly, schmaltzy, excessively emotional, mawkishly, and sugary. Each of these words convey a similar meaning to sappily, but with slightly different nuances. For example, "cloyingly" implies that something is too sweet, while "schmaltzy" has a more exaggerated connotation of being overly emotional. "Excessively emotional" is a more straightforward phrase that simply suggests something is too sentimental. "Mawkishly" and "sugary" both describe an excess of sweetness or sentimentality. Overall, these synonyms offer a range of options for expressing the same idea.