a. 不和谐的, 刺耳的, 不一致的

Dissonant \Dis"so*nant\, a. [L. dissonans, -antis, p. pr. of
dissonare to disagree in sound, be discordant; dis- + sonare
to sound: cf. F. dissonant. See {Sonant}.]
1. Sounding harshly; discordant; unharmonious.

With clamor of voices dissonant and loud.
--Longfellow.

2. Disagreeing; incongruous; discrepant, -- with from or to.
``Anything dissonant to truth.'' --South.

What can be dissonant from reason and nature than
that a man, naturally inclined to clemency, should
show himself unkind and inhuman? --Hakewill.