The Open Dictionary

sea legs

noun

UK/ˈsiː ˌleɡz/
US/ˈsiː ˌleɡz/

Definitions of sea legs noun

  1. Plural

    The ability to maintain one's balance and avoid seasickness while on a moving vessel.

    • After a few days at sea, he finally started to get his sea legs.

    • I couldn't stand up straight at first, but now I've got my sea legs.

    • She has many years of sailing experience, and she always has her sea legs under any conditions.