English

Adverb

to a nicety ‎(not comparable)

1. (idiomatic) To a fine point, with great exactness or accuracy.
   • 1960, P[elham] G[renville] Wodehouse, “chapter XVII”, in Jeeves in the Offing, London: Herbert Jenkins, OCLC 1227855:

     She gulped like a bulldog trying to swallow a sirloin steak many sizes too large for its thoracic cavity. “You mean there are two of them?” “Exactly.” “And Wilbert isn't the one I thought he was?” “You have grasped the position of affairs to a nicety.”

References

• to a nicety at nicety in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913