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adj. Most distant from the center or inside; outmost.

adj. Superlative form of outer.

adj. Farthest outside; as far from the center or inside as possible.

adj. Being on the extreme external part; farthest outward.

Being on the extreme external part; remotest from the midst; most distant of a series: as, the outermost row.

adj. situated at the farthest possible point from a center

"Everyone is more or less of a fish than the capybara, defined as the outermost realm of fishdom by the 16th-century Catholic Church."

outer   

outermore   

innermost    northwestern    northwest    outer    concentric    northernmost    topmost    furthest    outlying    north