The antonym for "crossing the bridge" can be interpreted in a few different ways. If we think about it literally, the antonym may be "avoiding the bridge" or "going around the bridge." Alternatively, if we think about it metaphorically, the antonyms could be "staying put" or "remaining stagnant."
In these interpretations, avoiding the bridge could mean finding an alternative or easier route to reach a goal or destination, while staying put could mean being content with the status quo and not taking risks or making progress.
Overall, the antonyms for "crossing the bridge" may imply a sense of reluctance or fear to move forward, while the act of crossing the bridge represents taking action and advancing towards something.