← BackshareGuessaftmost/ˈæftˌmoʊst/adjectiveLocated at or near the rear of a ship or aircraft.They stored the lifeboats in the aftmost section of the vessel.The captain stood at the aftmost part of the deck, watching the wake.The aftmost seats on the plane have extra legroom.SynonymsrearmosthindmostAntonymsforemost