discordant

Etymology

From Old French descordant, from descorder.

adj

1. Not in harmony or accord.
   With this shift in both what shows are being made, and in what viewers desire, the genre hearteningly appears to be reverting to its roots of being an entertainment spectacular, giving the space for novelty and mad-cap amusement that's presented in a warm and humorous way. After a discordant patch, it's in tune again – even if some auditionees, as ever, are not. September 15 2021, Laura Martin, “How talent shows became TV's most bizarre programmes”, in BBC
2. Harsh or dissonant-sounding.
3. (public health) Serodiscordant.
4. (geology) Of a differing type of rock cutting across a formation.
   Dikes may be discordant to country rock if they intrude at a high angle to the bedding.
5. (mathematics) Of opposite sign.