17 letters
- pretentiousnesses23
- probabilistically34
- programmabilities32
- prohibitivenesses30
- proportionalities25
- provincialization39
- provocativenesses32
- psycholinguistics35
- psychosexualities36
- psychosomatically37
- psychotherapeutic36
- punctiliousnesses28
- pyroelectricities29
- rationalistically26
- recapitalizations34
- recentralizations32
- reclassifications28
- recognizabilities36
- reconcilabilities29
- reconstructionism29
- reconstructionist26
- recrystallization34
- redistributionist23
- rehospitalization33
- reinterpretations22
- rememberabilities30
- remilitarizations31
- renationalization30
- repetitiousnesses22
- reproducibilities29
- resolidifications26
- restrictivenesses25
- retransformations25
- revascularization36
- revolutionariness25
- rumbustiousnesses27
- saccharifications32
- sanctimoniousness27
- semiautomatically31
- semidomestication28
- sententiousnesses21
- spiritualizations32
- straightjacketing40
- structuralization33
- subcategorization36
- subclassification32
- subjectivizations47
- substantialnesses24
- substantivenesses27
- supercivilization39
- superconductivity36
- superconservative33
- supercorporations28
- superfecundations31
- superlativenesses27
- supernaturalistic27
- superplasticities28
- superregenerative28
- superromanticisms31
- superspeculations30
- suppressibilities28
- supranationalisms27
- supranationalists24
- susceptiblenesses29
- technicalizations37
- telecommunication33
- tendentiousnesses22
- theatricalization33
- thermoregulations27
- thermostabilities26
- tightfistednesses26
- tintinnabulations26
- transcriptionally29
- transcriptionists25
- transferabilities25
- transgenerational23
- transilluminating28
- transillumination26
- transistorization28
- translatabilities23
- transnationalisms24
- transubstantiated24
- transubstantiates23
- ultraconservatism30
- ultraconservative31
- ultranationalisms25
- ultranationalists22
- unacceptabilities32
- unanswerabilities27
- unassailabilities24
- unchangeabilities31
- uncompetitiveness33
- unconventionality32
- undemonstratively31
- underutilizations32
- unemployabilities32
- universalizations34
- unmitigatednesses26
- unpretentiousness25
- unsophistications28
- unsympathetically36
- vasoconstrictions29
- viscoelasticities28