Definitions
1.AdjectiveNot in accord or harmony; conflicting, incompatible.
2.AdjectiveOf people: disagreeing with each other; dissenting, quarrelsome.
3.AdjectiveOf sounds: harsh, jarring; specifically , of musical notes or tunes: not in harmony; dissonant, inharmonious.
4.AdjectiveOf a rock formation or other land feature, or its alignment: cutting across or transverse to neighbouring features."Dikes may be discordant to country rock if they intrude at a high angle to the bedding."
5.AdjectiveOf a coastline: having bands of different types of rock running transversely to the coast, leading to the formation of alternating bays and headlands.
6.AdjectiveOf two similar subjects, especially twins: differing in some characteristic.
7.AdjectiveEllipsis of serodiscordant (“of a couple: with one partner HIV positive and the other HIV negative”).
8.AdjectiveOf figures, etc.: having opposite signs (for example, positive and negative).
9.NounA thing which is not in accord or harmony with one or more other things.