| Inexpert motorist | 17 |
| Inexplicable | 12 |
| Inexplicable impulses | 21 |
| Inexplicable occurrences | 24 |
| Inexplicable skill | 18 |
| Inexplicable talent | 19 |
| Inexplicable, in a way | 22 |
| Inexplicably | 12 |
| Inexplicably strange | 20 |
| Inexplicit | 10 |
| Inextricably involved | 21 |
| Inez from Alice in Chains | 25 |
| Inez's aunt | 15 |
| Inf. officers | 13 |
| Inf. to come | 12 |
| Inf. unit | 9 |
| Infallible | 10 |
| Infallible adviser | 18 |
| Infallible authority | 20 |
| Infallible fact | 15 |
| Infallible forecasters | 22 |
| Infallible truth | 16 |
| Infallible, as a scheme | 23 |
| Infallibly problem-free | 23 |
| Infamous | 8 |
| Infamous "Jeopardy!" champion Arthur | 46 |
| Infamous 1941 date, briefly | 27 |
| Infamous 1971 air pirate | 24 |
| Infamous 1972 hurricane | 23 |
| Infamous 1974 bank-robbing gp. | 30 |
| Infamous 1983 Royals/Yankees contest where a George Brett home run was nullified | 80 |
| Infamous 1984 gas leak site | 27 |
| Infamous 1999 computer virus with a woman's name | 52 |
| Infamous 2001 shredders | 23 |
| Infamous acid | 13 |
| Infamous African | 16 |
| Infamous Aldrich | 16 |
| Infamous Alger | 14 |
| Infamous alliance | 17 |
| Infamous Amin | 13 |
| Infamous Arbuckle | 17 |
| Infamous Arnold | 15 |
| Infamous ball toucher of the '00s | 37 |
| Infamous Barrow | 15 |
| Infamous baseball fan Jeffrey | 29 |
| Infamous Beatty bomb | 20 |
| Infamous booze boss in the 20's | 35 |
| Infamous Boston fiend | 21 |
| Infamous box opener | 19 |
| Infamous brute in a suit | 24 |
| Infamous Bugs | 13 |
| Infamous camp site | 18 |
| Infamous Cesare | 15 |
| Infamous Chicago cow owner | 26 |
| Infamous collar item | 20 |
| Infamous Colombian city | 23 |
| Infamous Colombian drug lord | 28 |
| Infamous comedy troupe | 22 |
| Infamous cow owner | 18 |
| Infamous czar | 13 |
| Infamous date in 1929 Chicago | 29 |
| Infamous deserter | 17 |
| Infamous despot Amin | 20 |
| Infamous dictator | 17 |
| Infamous dictator Pot | 21 |
| Infamous emperor | 16 |
| Infamous emperor of Rome | 24 |
| Infamous energy company | 23 |
| Infamous fallen angel | 21 |
| Infamous family cited by Machiavelli | 36 |
| Infamous family of the late 1800s | 33 |
| Infamous Fawkes | 15 |
| Infamous feud family | 20 |
| Infamous fiddler | 16 |
| Infamous fiddler of ancient times | 33 |
| Infamous film flop | 18 |
| Infamous financier Madoff | 25 |
| Infamous first name among hoteliers | 35 |
| Infamous Ford | 13 |
| Infamous Ford flop | 18 |
| Infamous Fords | 14 |
| Infamous French soldier | 23 |
| Infamous Frenchman | 18 |
| Infamous garden creature | 24 |
| Infamous Georgian | 17 |
| Infamous Henry | 14 |
| Infamous Hollywood institution | 30 |
| Infamous Houston company | 24 |
| Infamous Hun | 12 |
| Infamous Idi | 12 |
| Infamous innkeeper | 18 |
| Infamous insecticide | 20 |
| Infamous insider trader Ivan | 28 |
| Infamous island prison | 22 |
| Infamous isle of exile | 22 |
| Infamous Italian family name | 28 |
| Infamous Italian surname | 24 |
| Infamous jealous brother | 24 |
| Infamous king of the Bible | 26 |
| Infamous libertine Marquis ___ | 30 |