The antonyms for "art session" could include phrases such as "non-creative space," "lack of artistic expression," or "absence of artistic activity." Conversely, other antonyms could include "boredom," "routine," or "mundane tasks." Essentially, anything that is not related to art, creativity, or self-expression could be considered an antonym for "art session." It's important to note, however, that even when engaging in tasks that are not traditionally considered "artistic," there is often still room for creativity and self-expression. Ultimately, the goal is to find balance and incorporate both creative outlets and more pragmatic tasks into our daily lives.