sentimentality

/ˌsɛntəmənˈtæləti/
noun
  1. Excessive or exaggerated tenderness, sadness, or nostalgia, often in a way that seems insincere or overly emotional.
    • She kept her childhood teddy bear out of pure sentimentality, not because it was valuable.
    • His speech was full of sentimentality, making many in the audience roll their eyes.
    • The movie was criticized for its cheap sentimentality and predictable plot.
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