| Clue | Source | Date |
|---|---|---|
| Most solemn off-white underwear, we hear (7) | ||
| Most serious | USA Today | 22 Mar 2024 |
| Most serious | New York Times | 27 Dec 2022 |
| Most serious | New York Times | 09 Dec 2020 |
| Most serious one leaving monument | The Sun Two Speed | 08 Apr 2019 |
| Most sombre | The Sun Two Speed | 08 Apr 2019 |
| Most serious and somber | Universal | 21 Jan 2018 |
| Most serious and somber | ||
| Most sober | LA Times Daily | 13 Apr 2017 |
| Most sober | The Washington Post | 13 Apr 2017 |
| Most sober | ||
| Most serious | ||
| Least merry | ||
| Like a worst-case scenario | ||
| Most somber | ||
| Most ominous. | ||
| Most serious. |