Search Result for "sadness": 
Wordnet 3.0

NOUN (3)

1. emotions experienced when not in a state of well-being;
[syn: sadness, unhappiness]

2. the state of being sad;
- Example: "she tired of his perpetual sadness"
[syn: sadness, sorrow, sorrowfulness]

3. the quality of excessive mournfulness and uncheerfulness;
[syn: gloominess, lugubriousness, sadness]

The Collaborative International Dictionary of English v.0.48:

Sadness \Sad"ness\, n. 1. Heaviness; firmness. [Obs.] [1913 Webster] 2. Seriousness; gravity; discretion. [Obs.] [1913 Webster] Her sadness and her benignity. --Chaucer. [1913 Webster] 3. Quality of being sad, or unhappy; gloominess; sorrowfulness; dejection. [1913 Webster] Dim sadness did not spare That time celestial visages. --Milton. [1913 Webster] Syn: Sorrow; heaviness; dejection. See Grief. [1913 Webster]
WordNet (r) 3.0 (2006):

sadness n 1: emotions experienced when not in a state of well-being [syn: sadness, unhappiness] [ant: happiness] 2: the state of being sad; "she tired of his perpetual sadness" [syn: sadness, sorrow, sorrowfulness] 3: the quality of excessive mournfulness and uncheerfulness [syn: gloominess, lugubriousness, sadness]
Moby Thesaurus II by Grady Ward, 1.0:

111 Moby Thesaurus words for "sadness": aching heart, agony, agony of mind, anguish, bale, beggarliness, bitterness, blackishness, bleakness, bleeding heart, blue devils, blues, broken heart, cheapness, cheerlessness, comfortlessness, contemptibleness, crumminess, crushing, darkishness, darkness, darksomeness, dejectedness, dejection, depression, depth of misery, desolation, despair, despicableness, despondency, dinge, discomfort, disconsolateness, disconsolation, dismalness, dispiritedness, distress, distressfulness, doldrums, dolor, downcastness, downheartedness, downs, dreariness, dumps, duskiness, duskness, extremity, forlornness, funereality, funk, gaudiness, gloom, gloominess, graveness, grief, grievousness, heartache, heavy heart, heavyheartedness, hopelessness, infelicity, joylessness, lamentability, lamentation, listlessness, meanness, megrims, melancholia, melancholy, meretriciousness, meritlessness, miserableness, misery, moodiness, mopes, mournfulness, mourning, pain, painfulness, paltriness, pathos, pitiability, pitiableness, pitifulness, poignancy, poorness, prostration, regrettableness, shabbiness, sharpness, shoddiness, soberness, sobriety, somberness, sorriness, sorrow, sorrowfulness, suds, suicidal despair, swarth, swarthiness, swartness, unhappiness, unworthiness, vileness, woe, woebegoneness, woefulness, worthlessness, wretchedness