16 letters
- outdoorsmanships27
- overapplications31
- overcompensating33
- overcompensation31
- overcompensatory32
- overconservative32
- overconstructing31
- overconsumptions32
- overcultivations30
- overelaborations25
- overexpectations34
- overspeculations29
- overstimulations26
- overutilizations32
- parametrizations32
- parliamentarians25
- personalizations31
- personifications27
- phenolphthaleins32
- phosphatizations36
- phosphorylations30
- photoexcitations32
- photoionizations32
- photoproductions30
- photosensitivity28
- photosensitizers31
- photosensitizing34
- platitudinarians24
- polycondensation29
- postmillenarians26
- precancellations29
- prekindergartens28
- premodifications30
- prenotifications27
- preregistrations22
- procrastinations24
- prognostications26
- proselytizations32
- prussianizations31
- psychohistorians29
- psychometricians33
- quadruplications36
- radioprotections24
- radiosensitivity24
- rationalizations28
- reaccreditations24
- reafforestations23
- reauthorizations29
- recertifications26
- reconcentrations25
- reconfigurations27
- reconsiderations22
- recontaminations25
- redeterminations22
- refortifications26
- regionalizations30
- reincorporations24
- reinvestigations24
- renormalizations31
- reorchestrations22
- reprehensibility28
- reprivatizations33
- requalifications34
- resocializations30
- responsibilities24
- responsivenesses25
- retransformation24
- retroreflections24
- revisualizations32
- romanticizations33
- semiabstractions26
- semiconservative31
- sensationalising22
- sensationalistic22
- sensationalizing31
- septendecillions27
- standardizations29
- subconsciousness29
- suboptimizations36
- suborganizations33
- suburbanizations35
- subvocalizations38
- superimpositions27
- superintensities22
- superphenomenons31
- supersaturations22
- supersensitively28
- supersensitivity27
- supplementations29
- syllabifications30
- synchronisations26
- synchronizations35
- systematizations31
- tetrahydrofurans26
- thyrocalcitonins29
- transcendentally27
- transcontinental24
- transcriptionist24
- transfigurations24
- transformational25
- transilluminated25
- transilluminates24
- transilluminator24
- transitivenesses22
- transitorinesses18
- transliterations19
- transmissibility26
- transmissivities24
- transmissometers23
- transnationalism23
- transparentizing33
- transplacentally29
- transplantations23
- transportability26
- transportational22
- transsexualities26
- transubstantiate22
- ultrafiltrations23
- unconstitutional25
- underestimations23
- underproductions28
- unresponsiveness27
- unsatisfactorily27
- unscientifically32
- unscrupulousness29
- unseasonableness24
- unskillfulnesses30
- unsociablenesses26
- unsophistication27
- unsubstantiality26
- unsystematically30
- vascularizations35
- vasoconstriction28
- vasoconstrictive31
- vasoconstrictors27
- weltanschauungen32