This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The state or emotion of being sad.

n. An event in one's life that causes sadness.

n. Heaviness; firmness.

n. Seriousness; gravity; discretion.

n. Quality of being sad, or unhappy; gloominess; sorrowfulness; dejection.

n. Heaviness; weight; firmness; strength.

n. Steadiness; steadfastness; constancy.

n. Seriousness; gravity; discretion; sedateness; sobriety; sober earnest.

n. The state of being sad or sorrowful; sorrowfulness; mournfulness; dejection of mind: as, sadness in the remembrance of loss.

n. A melancholy look; gloom of countenance.

n. Synonyms Grief, Sorrow, etc. (see affliction); despondency, melancholy, depression.

n. emotions experienced when not in a state of well-being

n. the state of being sad

n. the quality of excessive mournfulness and uncheerfulness

"You wouldn't think of the phrase "bent-backed" or the word "sadness" were you to see the current exhibition at The de Young Museum in San Francisco titled"

uncheerfulness   

sorrow    grief    dejection    heaviness    firmness    seriousness    gravity    discretion    gloominess    sorrowfulness   

badness    madness   

sorrow    weariness    regret    tenderness    bitterness    embarrassment    dismay    awe    uncertainty    melancholy