The word "byplays" refers to the subtle actions or remarks made by actors or characters that add a layer of depth to a scene or conversation. A few antonyms for "byplays" might include "obviousness," "simplicity," or "directness." When a scene or conversation lacks byplays, it may come across as flat or uninteresting. However, sometimes a straightforward approach can also be effective, particularly in situations where clarity and brevity are important. Ultimately, the use of byplays or their absence depends on the context and desired effect of a particular scene or conversation.