The word sadness has two syllables. (sad-ness)
The Latin word for sadness is tristitia.
The word "sadness" is a common noun.
sadness is a common emotion
Yes, sadness = abstract noun.
The word is "melancholy."
John looked at Ann as the sadness filled her eyes.
Depression
well this has just one more letter in it and it is sadness you see sadness is a word that expresses fealings
depression
try "sadness" or a thesaurus?
grief