"Be-striding" means to stand or move with legs wide apart, as if dominating or commanding. The antonyms of "be-striding" would be words describing a lack of domination or command. Some possible options include "cowering," "fleeing," "retreating," "shuffling," or "sidling." Other antonyms might include words that describe a smaller physical presence, such as "narrow," "petite," "compact," or "diminutive." Essentially, any words that convey the opposite of a powerful or dominating stance could be considered antonyms for "be-striding." By using these words, writers can create precise and nuanced descriptions of characters, actions, and settings that convey a specific mood or tone.