| Text | Length |
| Unstable, metaphorically | 24 |
| Unstable, in the lab | 20 |
| Unstable type | 13 |
| Unstable symptom of nerves | 26 |
| Unstable subatomic particles | 28 |
| Unstable subatomic particle | 27 |
| Unstable structure | 18 |
| Unstable star | 13 |
| Unstable situation, metaphorically | 34 |
| Unstable situation | 18 |
| Unstable region | 15 |
| Unstable person, slangily | 25 |
| Unstable particles with great mass | 34 |
| Unstable particles | 18 |
| Unstable particle | 17 |
| Unstable or teetering | 21 |
| Unstable nuclear particle | 25 |
| Unstable meteorologist? | 23 |
| Unstable meson | 14 |
| Unstable leptons | 16 |
| Unstable lepton | 15 |
| Unstable explosive | 18 |
| Unstable events | 15 |
| Unstable dessert product | 24 |
| Unstable compound | 17 |
| Unstable | 8 |
| Unsportsmanlike sportsman | 25 |
| Unsportsmanlike sort | 20 |
| Unsportsmanlike move | 20 |
| Unsportsmanlike loser | 21 |
| Unsportsmanlike look | 20 |
| Unsportsmanlike conduct | 23 |
| Unsportsmanlike action | 22 |
| Unsportsmanlike | 15 |
| Unspontaneous ones | 18 |
| Unspoken, say | 13 |
| Unspoken, but understood | 24 |
| Unspoken, but thought | 21 |
| Unspoken, but implied | 21 |
| Unspoken, as approval | 21 |
| Unspoken, as an understanding | 29 |
| Unspoken, as an approval | 24 |
| Unspoken part of the Godfather's "offers"? | 56 |
| Unspoken okays | 14 |
| Unspoken language | 17 |
| Unspoken feeling | 16 |
| Unspoken but understood | 23 |
| Unspoken but implied | 20 |
| Unspoken assent | 15 |
| Unspoken agreements? | 20 |
| Unspoken agreement | 18 |
| Unspoken 'I dunno' | 26 |
| Unspoken 'I don't know' | 35 |
| Unspoken 'alas' | 23 |
| Unspoken 'Alas!' | 24 |
| Unspoken | 8 |
| Unspoiled spots | 15 |
| Unspoiled spot | 14 |
| Unspoiled site | 14 |
| Unspoiled places | 16 |
| Unspoiled paradise | 18 |
| Unspoiled locales | 17 |
| Unspoiled locale | 16 |
| Unspoiled area | 14 |
| Unspoiled (6) | 13 |
| Unspoiled | 9 |
| Unspirited? | 11 |
| Unspectacular, unsuccessful batted ball? | 40 |
| Unspecified, degreewise | 23 |
| Unspecified, but invariably unpleasant, alternative | 51 |
| Unspecified time | 16 |
| Unspecified things | 18 |
| Unspecified stuff | 17 |
| Unspecified quantity | 20 |
| Unspecified power | 17 |
| Unspecified place | 17 |
| Unspecified philosophies | 24 |
| Unspecified person | 18 |
| Unspecified people | 18 |
| Unspecified ordinal | 19 |
| Unspecified ones | 16 |
| Unspecified one | 15 |
| Unspecified object | 18 |
| Unspecified numerical power | 27 |
| Unspecified number | 18 |
| Unspecified no. | 15 |
| Unspecified location | 20 |
| Unspecified individual | 22 |
| Unspecified high degree | 23 |
| Unspecified fractions | 21 |
| Unspecified degrees, in math | 28 |
| Unspecified degrees | 19 |
| Unspecified degree | 18 |
| Unspecified culprits | 20 |
| Unspecified choice | 18 |
| Unspecified amount | 18 |
| Unspecified alternative | 23 |
| Unspecified amount | 19 |
| Unspecified | 11 |
| Unspecific vowel sound | 22 |
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