"a prosperous family who showed no signs of discord"

• lack of agreement or harmony between things

  "the discord between indigenous and Western cultures"

"the music faded in discord"

• a chord which (in conventional harmonic terms) is regarded as unpleasing or requiring resolution by another
• any interval except unison, an octave, a perfect fifth or fourth, a major or minor third and sixth, or their octaves
• a single note dissonant with another

"we discorded commonly on two points"

• (of things) be different

  "the party's views were apt to discord with those of the leading members of the government"