| Text | Length |
| Not for most teens | 18 |
| Not for neatniks | 16 |
| Not for nothing | 15 |
| Not for one time only | 21 |
| Not for prudes | 14 |
| Not for real | 12 |
| Not for straight arrows | 23 |
| Not for sure | 12 |
| Not for tender eyes | 19 |
| Not for the faint of heart | 26 |
| Not for the first time | 22 |
| Not for the general public | 26 |
| Not for the masses | 18 |
| Not for the outside | 19 |
| Not for the Parti Québécois? | 34 |
| Not for the prudish | 19 |
| Not for the public | 18 |
| Not for the scrap heap | 22 |
| Not for the squeamish | 21 |
| Not for the summit? | 19 |
| Not for the thin-skinned | 24 |
| Not for tots | 12 |
| Not for tweens, say | 19 |
| Not for young children | 22 |
| Not for young eyes | 18 |
| Not for: Abbr. | 14 |
| Not forbidden | 13 |
| Not forced | 10 |
| Not fore | 8 |
| Not foreign | 11 |
| Not foreign, as policy | 22 |
| Not foreordained | 16 |
| Not forget | 10 |
| Not forgetting | 14 |
| Not forgotten | 13 |
| Not formal | 10 |
| Not forming an angle | 20 |
| Not forsaking | 13 |
| Not forthcoming | 15 |
| Not forthright | 14 |
| Not forthwith | 13 |
| Not forward | 11 |
| Not forward, to a sailor | 24 |
| Not forward, to a salt | 22 |
| Not foul | 8 |
| Not found | 9 |
| Not found in many stamp collections, say | 40 |
| Not found on rolling stones | 27 |
| Not fractional | 14 |
| Not free | 8 |
| Not free on board | 17 |
| Not free to go | 14 |
| Not freelance | 13 |
| Not freelancing | 15 |
| Not freelancing, say | 20 |
| Not freely traversable | 22 |
| Not freq. | 9 |
| Not fresh | 9 |
| Not fresh enough to run in a newsweekly? | 40 |
| Not fresh, as water | 19 |
| Not fresh, in a way | 19 |
| Not fresh-squeezed | 18 |
| Not freshly made | 16 |
| Not fret | 8 |
| Not friendly | 12 |
| Not frilly | 10 |
| Not from a major studio | 23 |
| Not from a Scot | 15 |
| Not from a studio | 17 |
| Not from around here | 20 |
| Not from Earth | 14 |
| Not from Earth, say | 19 |
| Not from here | 13 |
| Not from the same source | 24 |
| Not from this world | 19 |
| Not frontward | 13 |
| Not frosty | 10 |
| Not frozen | 10 |
| Not fruity? | 11 |
| Not fulfilled | 13 |
| Not fulfilled, as needs | 23 |
| Not fulfilled, as responsibilities | 34 |
| Not full | 8 |
| Not full member | 15 |
| Not full-bodied | 15 |
| Not full-featured, as software | 30 |
| Not full-length | 15 |
| Not full-price | 14 |
| Not full-strength | 17 |
| Not fully | 9 |
| Not fully awake, maybe | 22 |
| Not fully baked? | 16 |
| Not fully closed | 16 |
| Not fully developed | 19 |
| Not fully digest | 16 |
| Not fully dried | 15 |
| Not fully dry | 13 |
| Not fully fixed | 15 |
| Not fully formed | 16 |
| Not fully noticed | 17 |
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