(n.) A sentence or result where the ideas become less important at the close; -- the opposite of climax\. It produces a ridiculous effect.

anticlimax bleeding heart cloyingness comedown goo hearts-and-flowers heaviness heaviness of heart heavy heart heavyheartedness maudlinness mawkishness mush mushiness namby-pamby namby-pambyism namby-pambyness nostalgia nostomania oversentimentalism oversentimentality pathos romanticism sadheartedness sadness sentiment sentimentalism sentimentality slop sloppiness slush soap opera sob story sweetness and light tearjerker