10 letters
- transferal15
- treponemal18
- trigeminal17
- trilateral12
- trilingual16
- triliteral12
- trochoidal17
- tyrannical18
- ufological21
- unbiblical23
- uncritical19
- unicameral19
- unilateral14
- unilingual18
- unofficial22
- unoriginal16
- unpastoral16
- unpunctual22
- urogenital15
- urological18
- urticarial15
- vestmental19
- vocational19
- volitional17
- withdrawal20
- zoological26