Twotimers is a slang term used to describe people who are unfaithful or disloyal, especially in romantic relationships. The antonyms for this term would be words that describe people who are trustworthy, loyal, and committed. Some examples of antonyms for twotimers include faithful, devoted, dependable, reliable, honest, and steadfast. These words represent the opposite of twotimers and describe individuals who are true to their word and uphold their promises. When it comes to building strong and lasting relationships, it's important to surround ourselves with people who possess these characteristics and avoid those who exhibit twotimer behaviour.