| 100% | SHOULDAGUESSED | 14 | "Stupid of me not to know" |
| 56% | REARENDER | 9 | Possible result of not knowing when to stop? |
| 55% | UNDERGRADUATECURSE | 18 | Bane of not knowing which college major to choose? |
| 54% | LION | 4 | To Rastafarians, Ethiopia's Haile Selassie I was known as "The ___ of Judah" |
| 53% | TMI | 3 | "That's not something I needed to know" |
| 52% | DOH | 3 | "How stupid of me!" |
| 52% | DUH | 3 | "How stupid of me!" |
| 52% | IMAFOOL | 7 | "How stupid of me!" |
| 52% | PLAYDUMB | 8 | Pretend not to know |
| 51% | FRODO | 5 | "I will take the Ring to Mordor, though I do not know the way" speaker |
| 51% | AMSO | 4 | “In sooth, I know not why I ___ sad”: opening of “The Merchant of Venice” |
| 51% | DOH | 3 | "That was stupid of me!" |
| 51% | FACEPALM | 8 | Gesture indicating "How stupid of me!" |
| 51% | OOPS | 4 | "Well, that was stupid of me!" |
| 51% | AMIANIDIOT | 10 | "That was so stupid of me!" |
| 50% | AHAB | 4 | Literary character who cries "Talk not to me of blasphemy, man; I’d strike the sun if it insulted me" |
| 50% | IMAN | 4 | "___ idiot!" ("How stupid of me!"): 2 wds. |
| 50% | EEYORE | 6 | "It's not much of a tail, but I'm sort of attached to it" speaker |
| 50% | EEYORE | 6 | “It’s not much of a tail, but I’m sort of attached to it” speaker |
| 49% | TABOO | 5 | Not to be spoken of |
| 49% | ALOT | 4 | "Not ___ of people know this about me ...": 2 wds. |
| 49% | AWARE | 5 | "Not that I'm ___ of" ("Nothing I know about") |
| 49% | TMI | 3 | "Not something I needed to know," in a text |
| 49% | ISBLISS | 7 | Ignorance __; sometimes it's better not to know |
| 49% | SETON | 5 | Not to be talked out of |
| 48% | ALOT | 4 | "Not ___ of people know this about me, but ...": 2 wds. |
| 48% | TMI | 3 | "Jeez, I did NOT need to know that!" |
| 48% | MAMA | 4 | "___ Told Me Not to Come" (Three Dog Night song) |
| 48% | THREE | 5 | "Mama Told Me Not to Come" band ___ Dog Night |
| 48% | NAM | 3 | "You know, Dude, I myself dabbled in pacifism once. Not in ___, of course." (Line from The Big Lebowski) |