1. occurring or done before breakfast
Usage: informal; typically used to describe activities, meals, or times that happen in the early morning before the main breakfast meal

Examples

• She went for a prebreakfast run every morning before work.
• The hotel offers prebreakfast coffee and pastries in the lobby.
• He had a prebreakfast snack to tide him over until the main meal.
• The prebreakfast hours are the quietest time at the gym.
• They scheduled the prebreakfast meeting for 6:30 a.m.