They are juna and maljuna.
The Esperanto words for recent and old are fresaj and maljuna.
The Esperanto word for "new" is "nova," and the word for "old" is "malnova."
The Esperanto words for far and away are malproskime and for.
The Esperanto words for astronaut and cosmonaut are very similar to the English words. In Esperanto you would use astronaŭto and kosmonaŭto.
The Esperanto words for boring and fun are enuiga and amuza.
The Esperanto words for near and far are proksime and malproksime.
The Esperanto words for car and driver are aŭto and ŝoforo.
The Esperanto words for alive and dead are vivas and mortinto.
The Esperanto words for hungry and full are malsata and plena.
The Esperanto words for broken and fixed are rompita and fiksa.
The Esperanto words for foreign and native are eksterlanda and denaska.
The Esperanto words for hard and soft are malfacila and malvarmeta.