Antonyms of "was in mid-air" can include phrases like "was on the ground," "was stationary," "was at rest," or "was settled." These antonyms refer to a state of stillness or stability, rather than movement or suspension. In contrast, "was in mid-air" suggests a moment of transition or progress, as if one is moving from one place to another. Synonyms for "was in mid-air" might include "was soaring," "was floating," or "was levitating," all of which suggest a sense of freedom and weightlessness. The choice of antonyms or synonyms can affect the meaning and impact of a sentence, emphasizing different aspects of the experience.