English edit

Etymology edit

instinctive +‎ -ity

Noun edit

instinctivity (usually uncountable, plural instinctivities)

  1. The quality of being instinctive, or prompted by instinct.
    • May 2, 1830, Samuel Taylor Coleridge, Table Talk
      There is growth only in plants; but there is irritability, or, a better word, instinctivity, in insects.