sadness is a common emotion
John looked at Ann as the sadness filled her eyes.
Her untimely death at 8 brought much sadness.
The man with the leaking umbrella was sad.
Disappointment is the feeling of sadness or displeasure caused by the non-fulfillment of one's hopes or expectations. e.g. Your failure is the reason for my disappointment
depressed?
You can use "despairing" in a sentence like this: "She felt a despairing sense of hopelessness as she looked at the empty job applications." This word conveys a deep sense of sadness and loss of hope in a given situation.
The young girl talked about her dad sadly when he died
Yes. It is a common noun because it is not capitalized unless it is the first word in a sentence.
The word sadness has two syllables. (sad-ness)
The Latin word for sadness is tristitia.
'Sad' is an adjective, the adverb is 'sadly'.sadly
The word "sadness" is a common noun.