Tidal/ˈtaɪdl/ Definition 1 of 3Pro Tip 1/3Coastal Connection Use 'tidal' to describe phenomena near oceans and seas, where tides are noticeable. The tidal pools were teeming with sea life. Pro Tip 2/3Not Always Waves 'Tidal' doesn't mean big waves; it refers to the regular rising and falling of sea levels. The old pier is exposed during low tidal periods. Pro Tip 3/3Timing Matters 'Tidal' events follow a predictable schedule, aligned with the moon's cycles. Tidal flooding occurs during the full moon.