Arrive in time refers to reaching a destination or fulfilling a commitment before the specified deadline. Antonyms for the phrase "arrive in time" could be "miss the deadline," "be late," "delayed," or "miss the boat." When someone fails to arrive in time, it could result in a negative consequence such as losing out on an opportunity, missing a flight, or being disqualified for an event. It is always critical to make sure that you arrive on time for important engagements, as it is a sign of respect for other people's time and shows a level of responsibility and professionalism.