Duplexities is a term that can be used to describe complex and contradictory situations or ideas. Synonyms for this word include ambivalence, duality, paradox, contradiction, and complexity. These words all express a level of confusion or frustration when things don't seem to fit together easily. They can be useful when discussing topics like psychology, politics, or philosophy where there are often conflicting opinions and viewpoints. Using synonyms for duplexities can help to emphasize the complexity of an issue and show that there is no easy solution or answer.