| Text | Length |
| Not unlike a ballet dancer | 26 |
| Not unless | 10 |
| Not unlawful | 12 |
| Not uninformed | 14 |
| Not uniform: Abbr. | 18 |
| Not uniform | 11 |
| Not unhinged | 12 |
| Not unexpected | 14 |
| Not understand | 14 |
| Not underhanded | 15 |
| Not under, with "at" | 30 |
| Not under wraps | 15 |
| Not under the stars or sun | 26 |
| Not under the counter | 21 |
| Not under one's breath | 26 |
| Not under control | 17 |
| Not under any circumstances, informally | 39 |
| Not under any circumstances | 27 |
| Not under | 9 |
| Not uncut, as a film | 20 |
| Not uncognizant | 15 |
| Not unbiased | 12 |
| Not unaware of the joke | 23 |
| Not unaware of | 14 |
| Not unanimous | 13 |
| Not twice | 9 |
| Not turning up much | 19 |
| Not turned up | 13 |
| Not turned on | 13 |
| Not turn ___ (stay calm) | 24 |
| Not turn ___ | 12 |
| Not turn away | 13 |
| Not turn a ___ | 14 |
| Not turbulent | 13 |
| Not tune out | 12 |
| Not trying to catch anyone | 26 |
| Not try very hard | 17 |
| Not trustworthy | 15 |
| Not trustful | 12 |
| Not trumped-up | 14 |
| Not trued up | 12 |
| Not true to life, perhaps | 25 |
| Not true | 8 |
| Not troubled by | 15 |
| Not troubled | 12 |
| Not trivial | 11 |
| Not trite | 9 |
| Not tried out | 13 |
| Not tricked by | 14 |
| Not tref | 8 |
| Not treated with preservatives, as meat | 39 |
| Not treat seriously, with "at" | 40 |
| Not tread lightly | 17 |
| Not traversed | 13 |
| Not traveling the galaxies | 26 |
| Not transparent | 15 |
| Not translucent | 15 |
| Not transitory | 14 |
| Not tranquil | 12 |
| Not trained | 11 |
| Not tractable | 13 |
| Not toweled off | 15 |
| Not tough at all | 16 |
| Not tough | 9 |
| Not touching, perhaps | 21 |
| Not touching | 12 |
| Not touch-tone | 14 |
| Not touch | 9 |
| Not totally worthless | 21 |
| Not totally disastrous | 22 |
| Not totally dark, maybe | 23 |
| Not totally amateur | 19 |
| Not totally against | 19 |
| Not totally | 11 |
| Not total | 9 |
| Not toss and turn? | 18 |
| Not toss | 8 |
| Not topside | 11 |
| Not tops | 8 |
| Not top tier (hyph.) | 20 |
| Not too ___ | 11 |
| Not too worldly | 15 |
| Not too wimpy | 13 |
| Not too wild to be broken | 25 |
| Not too violent or sexy | 23 |
| Not too tight? | 14 |
| Not too tight | 13 |
| Not too thin-skinned | 20 |
| Not too taxing | 14 |
| Not too tasty | 13 |
| Not too tactful | 15 |
| Not too swift | 13 |
| Not too sure | 12 |
| Not too spicy | 13 |
| Not too soft, as pasta | 22 |
| Not too soft | 12 |
| Not too smart | 13 |
| Not too sharp | 13 |
| Not too shabby, in slang (because saying "-ent" takes way too long) | 77 |
| Not too sexual or violent | 25 |
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