The property of lights or sounds that lack brilliance or are reduced in intensity(noun)
A disposition to be patient and long suffering(noun)
WordNet. Princeton University. 2010.
Use "subduedness" in a sentence
"But nevertheless even in the subduedness of his language he covertly strikes them again, for the word, "present," is exceedingly emphatic, and so is "in want.""
"Aunt Faith leaned against her pillows, looking bright and comfortable, even cheerful; but there was a strange gentleness in look and word and touch, as she greeted the young girl who came to her bedside with a face that wore at once its own subduedness of fresh-past grief, and a wondering, loving apprehension of something to be disclosed concerning the kind friend who lay there, invested so with such new grace of tenderness."
"As if Mat wasn't used to the subduedness of the crowd, he joked to the audience they'd have to "fucking sit through it and grin and bear it" before they played a few Beautiful Girls songs."