The Vocalibrate dictionary

maudlin

/ˈmɔdlɪn/adjective

foolishly sentimental, often in a tearful way

After a few drinks, he became maudlin about his ex-girlfriend.

Near in meaning: sentimentalmawkishtearfulschmaltzy
In the family: maudlinlymaudlinism

More words worth knowing

gauchesocially awkward and lacking good manners facetioussilly and playful about serious matters, at the wrong time deleteriousharmful or damaging inchoatejust begun and not yet fully formed fastidiousvery careful about detail, cleanliness, or accuracy parsimoniousextremely unwilling to spend money