busy [busier, busiest](crowded with business or activities) adjective [UK: ˈbɪ.zi] [US: ˈbɪ.zi]You seem busy. = Pareces ocupado.
engaged(already involved in a telephone call) adjective [UK: ɪn.ˈɡeɪdʒd] [US: en.ˈɡeɪdʒd]I'm engaged in a new business. = Estoy ocupado en un nuevo negocio.
occupied(busy) adjective [UK: ˈɒ.kjʊ.paɪd] [US: ˈɑː.kjə.ˌpaɪd]The fitting room is occupied. = El probador está ocupado.
desocupadoadjective
free [freer, freest](not in use) adjective [UK: friː] [US: ˈfriː]Bathroom's free. = El baño está desocupado.
idle [idler, idlest](not turned to appropriate use, not occupied, of time with little activity) adjective [UK: ˈaɪd.l̩] [US: ˈaɪd.l̩]
otiose(reluctant to work) adjective [UK: ˈəʊ.ʃɪəʊs] [US: ˈoʊ.ʃɪoʊs]
despreocupadoadjective
carefree(worry free, light hearted, etc.) adjective [UK: ˈkeə.friː] [US: ˈker.ˌfri]Your sister's carefree and casual air makes her very attractive. = El aire despreocupado y desenfadado de tu hermana la hace muy atractiva.
I'm worried(Indicates that the speaker is worried) phrase [UK: aɪm ˈwʌ.rɪd] [US: ˈaɪm ˈwɜː.rid]
preocupadoadjective
concerned(showing concern) adjective [UK: kən.ˈsɜːnd] [US: kən.ˈsɝːnd]I was concerned. = Estaba preocupado.
worried(thinking about unpleasant things that have happened or that might happen) adjective [UK: ˈwʌ.rɪd] [US: ˈwɜː.rid]Ziri was worried. = Ziri estaba preocupado.