gente viejos aburridos
aburrido
ancianos
Facebook es aburrido
Los libros son aburridos
Translation: Este cuento es aburrido.
Translation: Es aburrido aquí.
Translation: Estoy aburrido.Note that if you use "ser" and say "soy aburrido" it means "I am a boring person."
Translation: Hoy fue un día aburrido.
boring = aburrido/a(s) (male/female(plural))
The adjective "boring" is ennuyeux. So "you are boring" is Tu est ennuyeux (informal) or vous êtes ennuyeux(formal).Because of the spelling, this would be the same for speaking to a man, woman, or multiple people.
Era aburrido/a (masculine/feminine 'it') Pronounced 'AIRah ahbooRREEthaw/ah' ('th' as in 'the')
Translation: Hoy era aburrido.However, it is much more idiomatic to say, "Hoy me aburró." meaning "Today bored me."