(a.) Highest; uppermost; as, the topmost cliff; the topmost branch of a tree.

acmatic all-absorbing apical best capital cardinal chief consummate controlling dominant first-class first-rate foremost greatest head headmost highest leading main master maximal maximum meridian meridional most outside overmost overriding overruling paramount predominant preeminent premier primary prime principal ranking summital superlative supreme tip-top top top-notch ultimate upmost uppermost utmost vertical zenithal