The phrase "ex cogitations" refers to deep and profound thoughts or contemplation. Its antonyms, on the other hand, refer to the opposite of deep thought and contemplation. These may include "shallow," "superficial," "unreflective," "unthinking," and "heedless." Shallow thinking refers to a lack of depth and careful consideration, while superficial means lacking in substance and depth. Unreflective and unthinking denote a lack of mental or emotional awareness, while heedless implies acting without careful thought or consideration. Unlike "ex cogitations," which imply a deep intellectual process, it is essential to balance deep thought with practical action and not get lost in unthinking impulsivity.