Académico IELTS (Banda 5 y Abajo) - Age

still in the earlier stages of life

joven

living in the later stages of life

viejo

(of a person) approximately between 45 to 65 years old, typically indicating a stage of life between young adulthood and old age

de mediana edad

fully developed and mature

maduro (físicamente)

intended for or related to young people, particularly in sports

juvenil

old and mature of age

madura

having the age of thirteen to nineteen

adolescente

having the characteristics that are typical of young people

juvenil

fully-grown and physically developed

maduro, adulto

advanced in age

mayor

related to individuals who are considered elderly

anciano