Antonyms for the word "unpassioned" includes "passionate", "enthusiastic", "excited", "animated", "fervent", "eager", "zealous", "ardent", "spiritual", and "intense". Depending on the context, these words can be used to describe someone who exhibits strong emotions or has a high level of interest or energy towards something. These words are often used to describe people who have a particular passion or interest in a certain topic, hobby or activity. The opposite of unpassioned, these words convey a sense of intensity and fervor that can be infectious and inspiring to those around them.