The term "two-timers" refers to someone who is dishonest or disloyal in a relationship. However, there are several antonyms for this word, which signify the opposite meaning. Words like "faithful," "loyal," "committed," and "devoted" are perfect examples of antonyms for "two-timers." These words describe someone who is honest, trustworthy, and sticks to their commitments in a relationship. Furthermore, "fidele," "sincere," and "stalwart" are a few French and English words that can also serve as antonyms for "two-timers." Overall, these antonyms emphasize the importance of honesty, faithfulness, and loyalty in a relationship.