top-most

Adjective

topmost (not comparable)

1. At or nearest to the top; uppermost; being the very highest.
   • Well! well! ^([sic]) cried I, as the coachman turn’d in at the gates, I find I shall do very well : and by the time he had wheel’d round the court, and brought me up to the door, I found myself so much the better for my own lecture, that I neither ascended the steps like a victim to justice, who...1768, Mr. Yorick, A Sentimental Journey, page 114

   Antonyms:

   bottom-most

2. (figuratively) Of greatest status, esteem, or prestige; best.
   • If Aeschylus’ art at its topmost excellence is to be seen only in the trilogy of indissolubly connected parts, it is not true, as is sometimes maintained, that his art is to be judged exclusively on the basis of the three-part drama.1924, Herbert Weir Smyth, “VI. Orestea. I: Agamemnon”, in Aeschylean Tragedy, page 153