Definition of "perfectly"

The Gentiles would not perfectly relinquish all their Idols; so, they were persuaded to turne the Image of Jupiter with his thunderbolt to Christus crucifixus, and Venus and Cupid to the Madonna and her Babe.

1687, John Aubrey, Remaines of Gentilisme and Judaisme, page 6

I was perfectly stunned. I sat and moistened my lips a little, but otherwise made no effort to do anything: my chest was in a pitiful state.

1899, Knut Hamsun, “Part III”, in George Egerton [pseudonym; Mary Chavelita Dunne Bright], transl., Hunger […], London: Leonard Smithers and Co […], page 168

James Milner's angled free-kick was headed on to the post by the tireless [Darren] Bent and [Frank] Lampard the opportunist was perfectly placed to stoop and head in from virtually on the goal-line.

2011 November 12, “International friendly: England 1 – 0 Spain”, in BBC Sport‎

The route taken does not have to be a perfectly straight line, just so long as it is linear and is followed consistently for each transect taken.

2019, Li Huang, James Lambert, “Another Arrow for the Quiver: A New Methodology for Multilingual Researchers”, in Journal of Multilingual and Multicultural Development, page 4