10 letters
- portamenti17
- postmating19
- postulants16
- postulated16
- postulates15
- potentials15
- potentilla16
- prolamines18
- protamines17
- psalterium18
- pulmonates19
- pulsations16
- punctuates19
- pustulants17
- pustulated17
- quintuples26
- quintuplet26
- rationales12
- reimplants18
- reputation15
- resumption18
- saltations12
- salutation13
- sanatorium15
- saturation12
- semantical18
- semiannual17
- semipostal17
- senatorial12
- separation14
- simpletons18
- simulation16
- spallation16
- spathulate17
- spermatial17
- squamation24
- stalagmite16
- staurolite12
- stimulants16
- stimulated16
- stimulates15
- stimulator15
- stipulated16
- stipulates15
- stipulator15
- suboptimal21
- sultanates13
- suppletion19
- tabulation16
- tailplanes16
- tantalised13
- tantalises12
- tantalites12
- tantalizes21
- tantaluses13
- tarpaulins16
- temptation17
- tenaculums20
- thiopental17
- tonalities12
- tormentils15
- tourmaline16
- trampoline18
- transeptal15
- traumatise14
- tularemias15
- tympanites19
- ultimatums19
- ululations15
- unmanliest17
- unpastoral16
- unpleasant17
- unsaturate13
- unsuitable17
- usurpation16
- utopianism18
- valuations17
- womanliest18