| Extremely sentimental | 21 |
| Extremely serious | 17 |
| Extremely servile | 17 |
| Extremely sharp | 15 |
| Extremely sharp or intense | 26 |
| Extremely short one-act? | 24 |
| Extremely short supply | 22 |
| Extremely short time (abbr.) | 28 |
| Extremely short time unit (abbr.) | 33 |
| Extremely short time unit: abbr. | 32 |
| Extremely significant | 21 |
| Extremely silly | 15 |
| Extremely simple | 16 |
| Extremely simple visual style | 29 |
| Extremely sincere | 17 |
| Extremely skimpy wear | 21 |
| Extremely skittish | 18 |
| Extremely slight | 16 |
| Extremely slim | 14 |
| Extremely small | 15 |
| Extremely small amount | 22 |
| Extremely small margin | 22 |
| Extremely smart people | 22 |
| Extremely smart people (Var.) | 29 |
| Extremely sociable person | 25 |
| Extremely social student | 24 |
| Extremely soft | 14 |
| Extremely softly | 16 |
| Extremely softly, in music | 26 |
| Extremely softly, on a score | 28 |
| Extremely spicy | 15 |
| Extremely steamed | 17 |
| Extremely stern | 15 |
| Extremely strong mouse hunter? | 30 |
| Extremely stupid doings | 23 |
| Extremely successful | 20 |
| Extremely successful, in slang | 30 |
| Extremely successful, slangily | 30 |
| Extremely talented types, for short | 35 |
| Extremely tense and nervous | 27 |
| Extremely thick growth of trees | 31 |
| Extremely thin | 14 |
| Extremely thrilled | 18 |
| Extremely tight | 15 |
| Extremely tiny | 14 |
| Extremely tired | 15 |
| Extremely touching? | 19 |
| Extremely trivial | 17 |
| Extremely unattractive | 22 |
| Extremely uncommon | 18 |
| Extremely uncool person | 23 |
| Extremely unforgiving | 21 |
| Extremely unkind | 16 |
| Extremely unlikely | 18 |
| Extremely unpleasant | 20 |
| Extremely unpopular | 19 |
| Extremely unsafe thing to be in | 31 |
| Extremely upscale? | 18 |
| Extremely upset | 15 |
| Extremely urgent | 16 |
| Extremely vain | 14 |
| Extremely variable | 18 |
| Extremely venomous snake of southeast Asia | 42 |
| Extremely versatile material the Once-ler manufactures in "The Lorax" | 79 |
| Extremely violent | 17 |
| Extremely vivid, as a color | 27 |
| Extremely watchful | 18 |
| Extremely well-behaved child | 28 |
| Extremely well-behaved? | 23 |
| Extremely well-pitched | 22 |
| Extremely wicked | 16 |
| Extremely wimpy | 15 |
| Extremely worrisome | 19 |
| Extremely, in 1970s slang | 25 |
| Extremely, in Amiens | 20 |
| Extremely, in Évian | 23 |
| Extremely, in Britain | 21 |
| Extremely, in combinations | 26 |
| Extremely, in Essex | 19 |
| Extremely, in slang | 19 |
| Extremely, informally | 21 |
| Extremely, to Burns | 19 |
| Extremely, to Mozart | 20 |
| Extremely: Colloq. | 18 |
| Extremely: Mus. | 15 |
| Extremes | 8 |
| Extremes at Wimbledon | 21 |
| Extremes of life's happenings | 33 |
| Extremist | 9 |
| Extremist 1970s grp. | 20 |
| Extremist group | 15 |
| Extremist group, maybe | 22 |
| Extremist religious group | 25 |
| Extremist religious sect | 24 |
| Extremist sect | 14 |
| Extremist socialist faction | 27 |
| Extremist's doctrine | 24 |
| Extremist's prefix | 22 |
| Extremist's privilege? | 26 |
| Extremists | 10 |