9 letters
- triennial12
- triennium15
- trilobate13
- trimerous13
- trinomial14
- triplanes14
- triptanes13
- trivalent15
- troilites10
- troiluses11
- trotlines11
- troupials14
- troutiest10
- truancies14
- truanting14
- truncates14
- trunnions13
- trustable14
- tuitional12
- tularemia14
- tularemic17
- tumorlike18
- tumplines18
- tunesmith16
- tunicates14
- tunnelers13
- tunneling16
- turbinals15
- turbinate14
- turmoiled15
- turncoats14
- turnsoles12
- turnstile12
- turnstone12
- turntable15
- turtlings14
- tutorages12
- tutorials11
- tyramines15
- tyrannies13
- tyrannise13
- tyrannous14
- uintaites11
- ultimated15
- ultimates14
- ultrafine15
- ultraisms14
- ultraists11
- ultrasoft14
- ultrathin14
- umangites16
- unanimous16
- unbonnets16
- uncannier16
- uncertain15
- underlain14
- undermost15
- unfairest14
- unholiest14
- unilinear13
- univalent17
- universal16
- unlimbers18
- unloaders13
- unmanlier16
- unmanning19
- unmeaning18
- unmingles18
- unreality14
- unreasons12
- unruliest13
- unsealing15
- unseaming17
- unseating14
- unsetting14
- unsnarled14
- unstabler15
- unstained13
- unstating14
- unsterile12
- unstinted13
- untainted13
- untangles15
- unthrones14
- untimeous15
- untrained13
- unwariest14
- unwritten15
- uraninite12
- urbanites14
- urination12
- urinemias14
- urokinase15
- urticants14
- urticates13
- uttermost13
- vaultiest15
- venations15
- verminous18
- vernation15
- versional15
- violaters14
- wantoners14
- womanlier17