"Devoted to" is a powerful phrase that connotes dedication, loyalty, and commitment. It's a testament to an individual's unwavering passion and love towards a particular cause or person. However, if you're looking for synonyms to further enrich your vocabulary or avoid repetition, there are plenty of options to choose from. Some possible alternatives include "committed to," "dedicated to," "loyal to," "faithful to," "attached to," "adherent to," "zealous about," "enthusiastic about," "passionate about," "obsessed with," "infatuated with," and "smitten with." Each of these synonyms brings its own unique nuance and emphasises different facets of the original phrase, allowing you to convey your intended meaning with precision and flair.