English edit

Etymology edit

apt +‎ -ness

Pronunciation edit

  • IPA(key): /ˈæptnəs/
  • (file)

Noun edit

aptness (countable and uncountable, plural aptnesses)

  1. suitability; the quality of being apt or suitable
    • 1962 August, G. Freeman Allen, “Traffic control on the Great Northern Line”, in Modern Railways, page 128:
      A regular supply of coking slack is sent from Durham to the Scunthorpe area, in view of its special aptness for steelmaking processes, [...].
  2. disposition of the mind; propensity
    the aptness of men to follow example
  3. speed or readiness in learning; docility
    An aptness to learn is more observable in some children than in others.
  4. proneness; tendency
    the aptness of iron to rust

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