The word is monotone.
It means lack of agreement, or lack of harmony.
monotone
Discordance means lack of agreement.
monotony.
monotony
adyut means lack of light. dyut means like and adyut is lack of light
Illinois.
The opposite of harmony in music is dissonance. Dissonance means "the lack of harmony among musical notes". Another word that could be used to describe the opposite of harmony is cacophony, which means "a harsh, discordant mixture of sounds."
Noise
plausible
The German word "raus" means "(get) out."
ineffectual