Crossword clues for the word: INAUGURATIONDAY The word INAUGURATIONDAY has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for INAUGURATIONDAY Showing 1 to 5 of 5 results Clue(s) "Jan. 20, 1981" Cause for swearing January 20th Quadrennial observation Time for swearing?