14 letters
- refractometers23
- refractometric26
- refractoriness21
- remanufactured27
- remanufacturer26
- remanufactures26
- retractilities18
- revaccinations26
- saccharimeters25
- saccharinities23
- saccharometers25
- sacerdotalisms22
- sacerdotalists19
- sacramentalism25
- sacramentalist22
- sacrilegiously24
- satisfactorily23
- schoolteachers25
- shamefacedness27
- spaciousnesses22
- straightjacket34
- straitjacketed31
- streptobacilli25
- subarachnoidal26
- subcontracting28
- subcontractors25
- submetacentric28
- superachievers27
- superspectacle28
- tachistoscopes25
- tachistoscopic28
- tactlessnesses19
- telefacsimiles25
- tetrachlorides21
- thoroughbraces27
- traceabilities21
- tracheostomies22
- tractabilities21
- transplacental24
- trichomonacide27
- trisaccharides23
- turbomachinery29
- ultracivilized34
- ultracompetent26
- ultrapractical26
- unacademically30
- unacclimatized36
- unaccommodated30
- unacculturated26
- unaccustomedly30
- unacknowledged32
- unapproachable31
- unapproachably33
- unattractively26
- underachievers26
- underachieving29
- ungraciousness23
- unsatisfactory24
- vasoactivities25
- vernacularisms27