inconcinnity

/ˌɪnkənˈsɪnəti/
noun
  1. A lack of harmony, elegance, or suitability; awkwardness or incongruity in form, style, or arrangement.
    • The meeting had an inconcinnity of ideas, with each person arguing from a completely different perspective.
    • The designer noticed an inconcinnity between the modern furniture and the antique wallpaper.
    • There was a subtle inconcinnity in the poem's rhythm that made it feel slightly off.