The word "unloyal" is often used to describe someone who lacks loyalty or faithfulness. Antonyms, or words with opposite meanings, for "unloyal" include loyal, faithful, devoted, committed, dedicated, steadfast, trustworthy, reliable, dependable, and sincere. These words describe individuals who are devoted to a cause, committed to a relationship, or true to their beliefs. Someone who is loyal or faithful is someone you can count on and trust, and they will prioritize your needs and feelings above their own. Thus, it is essential to surround oneself with people who exhibit these positive traits to promote healthy relationships and foster positive connections.