14 letters
- multilaterally24
- multiparameter25
- multiracialism26
- narratological22
- narratologists18
- naturalization27
- neoliberalisms23
- neuraminidases21
- neuroradiology22
- neutralization27
- nitroparaffins25
- nonappearances26
- nonbarbiturate23
- noncelebration24
- noncontractual25
- noncooperation23
- noncooperative26
- noncooperators22
- nondegenerates20
- nondegradables24
- nongrammatical28
- noninteracting23
- noninteractive24
- nonoperational21
- nonprogrammers27
- nonradioactive24
- nontherapeutic25
- nontraditional19
- noradrenalines19
- obduratenesses20
- oceanographers25
- oceanographies25
- operationalism22
- operationalist19
- opisthobranchs28
- orchestrations20
- orthographical27
- oscillographic29
- outrageousness19
- overabstracted25
- overabundances28
- overaccentuate26
- overactivities25
- overadjustment33
- overadvertised24
- overadvertises23
- overaggressive26
- overanalytical26
- overarticulate23
- overassertions19
- overassessment22
- overattentions20
- overcentralize32
- overdecorating25
- overdecoration23
- overdramatized32
- overdramatizes31
- overelaborated23
- overelaborates22
- overencouraged26
- overencourages25
- overexaggerate29
- overextraction29
- overgeneralize31
- overprograming29
- overprogrammed30
- oversaturating22
- oversaturation20
- paleogeography29
- paleographical29
- pantisocracies24
- pantisocratist21
- parabiotically27
- paradisaically25
- paradisiacally25
- paradoxicality31
- parainfluenzas33
- parajournalism32
- paralinguistic25
- parallelepiped27
- parallelograms25
- paramagnetisms26
- parameterizing32
- parametrically27
- parapsychology32
- pararosaniline20
- parasitization27
- parasitologies20
- parasitologist20
- paratactically27
- pastoralnesses19
- pectinesterase21
- perambulations26
- perseverations22
- petrographical28
- phenmetrazines33
- phlebographies30
- photoengravers26
- photoengraving29
- photogrammetry29
- phraseological26
- phraseologists22
- physiographers28
- physiographies28
- phytogeography32
- pleasurability25
- plethysmograms30
- plethysmograph32
- pluralizations30
- pneumothoraces27
- pneumothoraxes31
- pococurantisms28
- polarographies25
- posterolateral19
- postgraduation22
- postliberation22
- practicability29
- practicalities24
- praiseworthily25
- prankishnesses25
- prearrangement24
- prefigurations24
- preoperational22
- preoperatively27
- preponderances26
- preponderantly26
- preponderately25
- preponderating25
- preponderation23
- preprogramming31
- procrastinated22
- procrastinates21
- procrastinator21
- proliferations22
- pseudepigrapha29
- pseudepigraphs29
- pseudepigraphy31
- psychodramatic31
- quadrilaterals27
- quadrumvirates33
- radicalization29
- radioautograph23
- radiobiologies21
- radiobiologist21
- radiochemistry25
- radioecologies21
- radiolabelling24
- radiologically25
- radiolucencies24
- radiosensitive20
- radiostrontium20
- radiotelegraph23
- radiotelemetry21
- radiotelephone22
- radiotelephony24
- radiotherapies20
- radiotherapist20
- rambunctiously29
- rampageousness24
- randomizations29
- rapprochements29
- ratiocinations19
- rationalizable29
- rationalnesses17
- ravenousnesses21
- reaccelerating24
- rearrangements21
- recalcitrances25
- recalibrations22
- rechoreographs26
- reconcentrated23
- reconcentrates22
- reconfigurable28
- reconsecrating24
- reconsecration22
- recoverability27
- redintegrating21
- redintegration19
- redintegrative22
- refractiveness25
- refractivities24
- refractometers23
- refractometric26
- refractoriness21
- refrangibility26
- refrigerations20
- regenerateness18
- reincorporated22
- reincorporates21
- reintegrations18
- reinvigorating24
- reinvigoration22
- reinvigorators21
- remonstrations19
- remuneratively26
- reorchestrated20
- reorchestrates19
- rephotographed27
- reprogrammable29
- reregistration17