Crossword clues for the word: TIDALWAVE The word TIDALWAVE has appeared as an answer to at least 11 crossword clues on different crossword puzzles. Crossword clues for TIDALWAVE Showing 1 to 11 of 11 results Clue(s) "Overwhelming surge, as of opinion" Any widespread movement. Burst of feeling. Cleverness around boy returning greeting, getting upturn in public response Coastal flooding cause Huge ocean surge Powerful movement Result of significant submarine activity Seaside disaster cause Swell event? Tsunami