Synonyms for Sentimental (same or very similar meaning)
WordNet sense 1 (given to sympathy or gentleness or sentimentality):
tender
WordNet sense 2 (effusively or insincerely emotional):
bathetic, drippy, hokey, maudlin, mawkish, mushy, schmaltzy, slushy, soppy, soupy, schmalzy
WordNet sense 3 (of more than usual emotion):
emotional
From the ODE community, based on WordNet
add/edit