Seepage/ˈsiːpɪdʒ/ Definition 1 of 3Pro Tip 1/3Indicates Damage Often highlights an issue needing repair or attention to prevent damage. The seepage has damaged the floorboards. Pro Tip 2/3Slow Process Emphasizes a gradual, not sudden, flow of liquid. Seepage of rainwater into the soil occurs slowly. Pro Tip 3/3Stealthy Entry Describes liquid entering a place where it's not easily noticeable at first. Seepage beneath the door went undetected.