What describes the deliberate juxtaposition of opposite ideas?

The concept of antithesis refers to the rhetorical device that involves placing contrasting or opposing ideas in close proximity to highlight their differences. This technique is often used to create a greater impact or to emphasize the stark contrast between two ideas. For instance, in literature and speeches, antithesis can present conflicting ideas such as "It was the best of times, it was the worst of times," which underscores the complexity of the situation by showcasing opposing forces simultaneously.

In contrast, an oxymoron combines contradictory terms in a compact phrase, like “deafening silence.” A paradox, on the other hand, presents a seemingly self-contradictory statement that may reveal a deeper truth upon reflection, while contrast is a more general term that refers to the difference between two distinct subjects or ideas without the specific focus on their juxtaposition for rhetorical effect. Thus, antithesis is the most precise term for the deliberate juxtaposition of opposite ideas.