The phrase "fell between the cracks" refers to something that was overlooked or neglected. Its antonyms would be words that mean the opposite, such as "attention," "focus," or "notice." Other antonyms for "fell between the cracks" could include "recognized," "acknowledged," "addressed," "attended," or "handled." Using these words instead of "fell between the cracks" would convey a sense of action, resolve, and care. By focusing on what was accomplished rather than what was missed, a speaker or writer can inspire others to take responsibility and be more attentive in the future.