10 letters
- omnipotent18
- optatively20
- optimality19
- optionally18
- optometric19
- orientally15
- osmolality17
- paclitaxel25
- palatinate15
- palliation16
- palmations18
- palmitates17
- paniculate19
- parentally18
- parliament18
- paternally18
- pathetical19
- patronymic22
- peculation19
- pentatonic18
- petulantly19
- phatically22
- phonematic22
- phonically23
- photically22
- photolytic21
- placations18
- placentals19
- plantation16
- playacting22
- pleasantly18
- pleonastic18
- plyometric22
- poetically20
- pollinated17
- pollinates16
- pollinator16
- polyamines20
- polyatomic22
- polyclonal22
- polymathic24
- polynomial21
- polyolefin21
- polyvalent22
- ponytailed18
- portamenti17
- portamento17
- postatomic19
- postcoital17
- potentials15
- potentilla16
- pratincole18
- prenatally18
- protection17
- protonemal18
- pyromaniac22
- rationally15
- relational13
- relocation15
- rotational12
- salicylate17
- semantical18
- semicolony20
- societally17
- somatotype18
- spallation16
- statically17
- stenotopic17
- synoptical20
- tactically20
- tailcoated15
- tailplanes16
- taphonomic22
- teleonomic18
- temporally20
- temptation17
- temptingly22
- terminally18
- thetically19
- thiopental17
- toilsomely17
- tolerantly15
- toleration12
- tomatillos15
- topgallant18
- topicality19
- toploftily20
- toponymies19
- toponymist19
- tractional15
- trampoline18
- tropically20
- tryptamine19
- tympanites19
- tympanitic22
- ultimately18
- vocational19