The term "more astir" implies movement, activity, and an energetic state. Its antonyms are words that suggest the opposite, such as motionless, inactive, stagnant, and dull. These terms convey a sense of stillness, inactivity or inertia, and a general lack of energy or excitement. Words like sedentary, idle, lethargic, and lifeless can also be used to describe the opposite of "more astir." These antonyms provide contrast, highlighting the difference between activity and inactivity. While "more astir" suggests a state of being alive and bustling, its antonyms suggest a state of non-movement that may also connote a lack of motivation or enthusiasm.