the antonym to the word disturbance is "calm and quiet"
Quiet
loud
quiet; reserved; silent; laconic
if used as a verb it is be quiet and suppress. -nouns is aphony.
An antonym is a word that means the opposite of one word. Like Loud and quiet, or big and small. Sunny and cloudy you could say are opposites, so the answer is: Antonym.
I believe stentorian means "very loud or powerful in sound." Therefore, the antonym of this word would probably be "quiet or meek in sound."
quiet
Quiet
quiet
loud
The antonym for garrulous is reticent, meaning someone who is reserved or uncommunicative.