"The young man is in the forum with an angry parrot."
Translation:Iuvenis cum psittaco irato in foro est.
Does adulescens have the same age range?
(1) defined as: young, youthful and "minor" (in reference to the younger of two having same name)
(2) not gender specific: Sg. Nom. for Masculine, Feminine and Neuter: adulescens
Here, below, I would only translate it as 'young man', since it is compared to 'old man' (senex), but the comparative function does not always extend to the nominative substantive form being synonymous to iuvenis, because of the age range and non-gender specific, i.e., 'young person'.
Tullius Marcellinus, quem optime noveras, adulescens quietus et cito senex, morbo et non insanabili correptus sed longo et molesto et multa imperante, coepit deliberare de morte.