English edit

Etymology edit

From Middle English flatnesse, equivalent to flat +‎ -ness.

Pronunciation edit

Noun edit

flatness (countable and uncountable, plural flatnesses)

  1. The state of being flat
    • 2022 November 30, Paul Bigland, “Destination Oban: a Sunday in Scotland”, in RAIL, number 971, page 75:
      The flatness of the landscape facilitates views right across the Firth of Forth to Fife, before the railway begins to pierce the Edinburgh suburbs.
  2. The state of being two-dimensional; planar : planarity
  3. The state of being bland : dullness
  4. Mattness, the quality of a painted surface which scatters or absorbs the light falling on it, so as to be substantially free from gloss or sheen
  5. (oenology) Lack of bouquet and freshness of a wine, through too much aeration or infection with film yeasts
  6. (statistics) slim-tailedness or platykurticity

Derived terms edit

Translations edit