Aburrido in Spanish can mean either boring or bored, depending on the context. It can be used as an adjective or as a past participle of the verb aburrir, which means to bore or to get bored23. For example:
Esta película es muy aburrida. (This movie is very boring.)
Estoy aburrido de hacer lo mismo. (I’m bored of doing the same thing.)
No me aburras con tus problemas. (Don’t bore me with your problems.)
Me aburrí mucho en la fiesta. (I got very bored at the party.)