← BackshareGuessoutmost/ˈaʊtˌmoʊst/adjectiveFarthest from the center or inside; most distant outward.We hiked to the outmost edge of the cliff to see the sunset.The outmost layer of the Earth is called the crust.The outmost planets in our solar system are gas giants.SynonymsoutermostfarthestextremeAntonymsinnermost