10 letters
- regulation15
- regulatory16
- relational13
- relativity17
- relaxation19
- relictions15
- relocating17
- relocation15
- reluctancy21
- renaturing15
- rencounter16
- renouncing19
- renovation16
- renunciate16
- reparation14
- replicator17
- reputation15
- resolution13
- resonantly15
- resorcinol15
- restaurant12
- reticently17
- reticulate15
- retinacula16
- retiringly16
- retractile14
- retracting16
- retraction14
- retraining14
- reunifying20
- reunionist13
- revocation18
- revolution17
- rhetorical16
- ritornelli13
- ritornello13
- rotational12
- rotatively17
- rotorcraft16
- rototiller12
- rouletting15
- ruinations13
- ruminantly19
- rumination16
- ruralities12
- rusticator14
- salutation13
- salutatory14
- sanctifier17
- sanitarily14
- sanitation12
- saturation12
- scurrility17
- secularity17
- senatorial12
- senatorian12
- sinoatrial12
- solicitant15
- sonication15
- stationary13
- stationery13
- staurolite12
- stentorian12
- storefront14
- surfactant18
- tabulation16
- tailcoated15
- tangential15
- tantalizer21
- tarantulae13
- tarnations12
- tarriances14
- tauntingly18
- tautomeric17
- tenability17
- tentacular16
- tenurially16
- teratology15
- terminator14
- termitaria13
- terrifying18
- testicular15
- tetracaine14
- tetragonal14
- theatrical16
- thiouracil17
- thorianite13
- tinctorial15
- tincturing18
- titularies12
- toenailing15
- tolerantly15
- tolerating14
- toleration12
- tolerators11
- tonalities12
- topicality19
- toploftier17
- torrefying18
- torrential12
- torrifying18
- tortellini13
- tortiously14
- tourmaline16
- tournament16
- tourneying17
- trabeation14
- trabecular18
- tracheolar16
- tracklayer20
- tractional15
- tradecraft17
- trailering14
- trailerist11
- trailerite11
- traitorous11
- trajection23
- trajectory24
- tramontane15
- tranquiler22
- transactor14
- transferal15
- transiency17
- transition12
- transitory13
- translator12
- tremolitic17
- tretinoins12
- triangular15
- tricolored15
- tricotines14
- triennials13
- trifoliate14
- trifurcate17
- trilateral12
- triliteral12
- trinocular16
- tripinnate15
- triplicate17
- triradiate11
- trisection14
- tristearin11
- triticales14
- triturable15
- trochanter16
- truantries12
- truncating18
- truncation16
- tunability18
- tutoyering16
- tyrannical18
- tyrannizer23
- tyrocidine17
- ulcerating18
- ulceration16
- ulteriorly15
- ultraclean17
- ultrafiche20
- ultraistic15
- ultramafic21
- ultramicro18
- ultrasonic16
- unarrogant15
- unartistic15
- unathletic18
- uncanniest17
- unciliated17
- unconfined21
- uncreating18
- uncritical19
- undercroft19
- unerringly18
- unfamiliar19
- unfavorite19
- unfriendly20
- ungainlier16
- unicameral19
- unifoliate16
- uniformity20
- unilateral14
- uninflated18
- uninitiate13
- unitarians13
- univariate16
- unlearning17
- unliterary15
- unmannerly20
- unmilitary18
- unmorality18
- unneurotic17
- unofficial22
- unoriginal16
- unromantic19
- unsanitary15
- untiringly18
- uraninites13
- uricotelic18
- urinations13
- urogenital15
- urticarial15