The phrase "close shave" refers to a narrow escape from an accident or a dangerous situation. Antonyms for this phrase may include "safe distance," which implies a comfortable and secure space away from harm's way. "Routine affair" is another antonym, which suggests that the event was average and uneventful, without any element of danger. "Easy pass," "smooth sailing," and "sure thing" are also good antonyms for "close shave." These phrases imply a process without any obstacle or danger, leading to a successful outcome. Whatever the antonym, it necessarily implies safety, ease, and lack of risk.