The Collaborative International Dictionary of English v.0.48:

Emotionalism \E*mo"tion*al*ism\, n.
   The cultivation of an emotional state of mind; tendency to
   regard things in an emotional manner.
   [1913 Webster]

WordNet (r) 3.0 (2006):

emotionalism
    n 1: emotional nature or quality [syn: emotionality,
         emotionalism] [ant: emotionlessness, unemotionality]

Moby Thesaurus II by Grady Ward, 1.0:

76 Moby Thesaurus words for "emotionalism":
   abstraction, abulia, agitability, alienation, anxiety,
   anxiety equivalent, anxiety state, apathy, blood and thunder,
   catatonic stupor, combustibility, compulsion, dejection,
   demonstrativeness, depression, detachment, edginess, elation,
   emotional appeal, emotional instability, emotionality,
   emotionalization, emotionalizing, emotiveness, emotivity,
   eruptiveness, euphoria, excitability, excitableness, explosiveness,
   folie du doute, histrionics, human interest, hypochondria,
   hysteria, hysterics, indifference, inflammability, insensibility,
   irascibility, irritability, latent violence, lethargy,
   love interest, making scenes, mania, melancholia, melodrama,
   melodramatics, mental distress, nervousness, nonrationalness,
   obsession, pathological indecisiveness, perturbability,
   preoccupation, prickliness, psychalgia, psychomotor disturbance,
   sensationalism, sensitivity, skittishness, startlishness, stupor,
   tempestuousness, theatricality, theatrics, tic, touchiness,
   twitching, unreasoningness, unresponsiveness, violence,
   visceralness, withdrawal, yellow journalism