Definition of "curiousness"

(uncountable)

1. Curiosity; inquisitiveness.  examples

2. (dated) The state of being curious; exactness of workmanship; ingenuity of contrivance.  examples

3. (obsolete) Care; carefulness; pains.  quotations

   Quotations

   • [M]y father's care / With curiousness and cost, did train me up / In all those liberal qualities that commend / A gentleman: […]

     1624 November 3 (first performance), Philip Massinger, “The Parliament of Love”, in W[illiam] Gifford, editor, The Plays of Philip Massinger, […], volume II, London: […] G[eorge] and W[illiam] Nicol; […] by W[illiam] Bulmer and Co. […], published 1805, Act V, scene i, page 309

(countable) The product or result of being curious.  examples