0 (of sounds or musical notes) sounding strange or unpleasant:
a dissonant combination of sounds
His compositions tend to be brutally dissonant and repetitive.
Amid the celebrations over the passage of the reform bill this week, one dissonant voice could be heard.
The ancient tower is topped by a dissonant bell that clanks out the call to Mass.
Since the 1960s, a new emphasis has been placed on atonal, dissonant and electronic compositions.
This dispute was a rare dissonant note between the two powers which have recently been on very friendly terms.
She professed herself to be an anarchist, which I thought a little dissonant, given that she accepted a CBE from the Queen.
People don't like to be in a dissonant state, a state where they're psychologically uncomfortable.