Two-timing is a term used to describe someone who is cheating or being unfaithful in a relationship. When looking for antonyms to this term, one might consider words that express loyalty and honesty. Some possible antonyms for more two-timing could include faithful, committed, devoted, trustworthy, honest, and monogamous. These words indicate a strong dedication to one person and a desire to maintain a healthy and exclusive relationship. While there may be some temptation and challenges in any relationship, those who prioritize honesty and loyalty are more likely to build a fulfilling and lasting connection with their partner.