Webster's Revised Unabridged Dictionary · 1913

Discordant

Discordant , adjective

[Old English discordant, descordaunt, Old French descordant, discordant, French discordant, present participle of discorder, Old French also, descorder. See Discord, n.]

1.
Disagreeing; incongruous; being at variance; clashing; opposing; not harmonious.
The discordant elements out of which the emperor had compounded his realm did not coalesce. — Motley
2.
(Music) Dissonant; not in harmony or musical concord; harsh; jarring; as, discordant notes or sounds.
For still their music seemed to start Discordant echoes in each heart. — Longfellow
3.
(Geology) Said of strata which lack conformity in direction of bedding, either as in unconformability, or as caused by a fault.