1. farthest from the center or middle; most distant or remote

Examples

• The outermost planet in our solar system is Neptune.
• She lived in the outermost suburbs of the city.
• The outermost layer of the Earth’s atmosphere is the exosphere.
• Only the outermost ring of seats was still available.
• The castle’s outermost walls were built for defense.
• He reached the outermost edge of the forest.