Crossword clues for the word: ESTIVATE The word ESTIVATE has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for ESTIVATE Showing 1 to 6 of 6 results Clue(s) Opposite of hibernate Pass the summer. Relative of hibernate Snooze through the summer Spend the summer Stay inactive over the summer