joy [joys](feeling of happiness) noun [UK: dʒɔɪ] [US: ˌdʒɔɪ]His face reflects joy. = La cara de él muestra felicidad.
felicidades interjection {f-Pl}
congratulations(expressing approbation) interjection [UK: kən.ˌɡræ.tʃʊ.ˈleɪʃ.n̩z] [US: kən.ˌɡræ.tʃə.ˈleɪʃ.n̩z]Congratulations to them. = Felicidades a ellos.
infelicidadnoun
unhappiness(feeling of not being happy) noun [UK: ʌn.ˈhæ.pɪ.nəs] [US: ʌn.ˈhæ.pi.nəs]Unhappiness comes without being called. = La infelicidad viene sin ser llamada.