The term "springing mind" refers to a mind that is active, imaginative and creative. However, when we talk about antonyms for this term, we are looking at words that describe a mind which is dull, unproductive, and lacks imagination. Some antonyms that come to mind to describe such a mind include; inactive, lethargic, apathetic, uninterested, uninspired, uncreative, boring, and unresponsive. These antonyms all describe a mind that is simply going through the motions and lacking the spark of creativity and innovation that characterizes a springing mind. In summary, a springing mind is an active and imaginative mind, while its antonyms describe a mind that is dull and unresponsive.