10 letters
- pontifical21
- pontifices20
- precertify21
- prequalify29
- presifting19
- presignify21
- prespecify24
- prettified17
- prettifier16
- prettifies16
- qualifiers24
- qualifying29
- quantified25
- quantifier24
- quantifies24
- reclassify19
- recodified18
- recodifies17
- rectifiers16
- rectifying21
- redshifted17
- reedifying19
- reidentify17
- remodified18
- remodifies17
- renotified15
- renotifies14
- repacified20
- repacifies19
- repurified18
- repurifies17
- resinified15
- resinifies14
- resolidify17
- reunifying20
- reverified18
- reverifies17
- revivified22
- revivifies21
- rifampicin23
- rifenesses14
- riflebirds18
- rigidified17
- rigidifies16
- russifying19
- saccharify23
- sacrificed20
- sacrificer19
- sacrifices19
- sanctified18
- sanctifier17
- sanctifies17
- saponified18
- saponifier17
- saponifies17
- saxifrages22
- scarifiers16
- scarifying21
- scientific20
- scorifying21
- semifeudal19
- semifinals18
- semifitted17
- semifluids19
- semiformal20
- sheriffdom22
- shiftiness16
- shoplifted20
- shoplifter19
- signifieds17
- signifiers16
- signifying21
- silicified18
- silicifies17
- simplified21
- simplifier20
- simplifies20
- sniffiness18
- sniffishly22
- snowdrifts18
- solidified16
- solidifies15
- soporifics19
- specifiers19
- specifying24
- spiffiness20
- spindrifts18
- spinifexes24
- squiffiest26
- stellified16
- stellifies15
- stiffeners17
- stiffening20
- stiflingly20
- stratified14
- stratifies13
- stratiform16
- strifeless14
- stultified16
- stultifies15
- sudorifics18
- tackifiers20
- tackifying25
- tamoxifens24
- tenebrific20
- terrifying18
- testifiers13
- testifying18
- thriftiest15
- thriftless16
- torrifying18
- trifoliate14
- trifoliums18
- trifurcate17
- tubificids21
- umbellifer22
- uncodified20
- unedifying21
- unifoliate16
- uniformest18
- uniforming21
- uniformity20
- unmerciful23
- unmodified20
- unshifting20
- unspecific24
- unverified20
- upshifting22
- ventifacts21
- verbifying25
- verifiable21
- vermifuges23
- versifiers17
- versifying22
- vitrifying22
- vociferant21
- vociferate20
- vociferous21
- wearifully21
- wifeliness18
- zincifying31
- zinkifying32
- zombifying33