14 letters
- postpubescents28
- preadolescence26
- preadolescents23
- precentorships26
- preceptorships28
- preconceptions28
- predaceousness23
- preperformance30
- preponderances26
- prepubescences31
- princelinesses23
- processability26
- processibility26
- processionally25
- pronouncements27
- proprioception27
- proprioceptive30
- proprioceptors26
- prosencephalic30
- prosencephalon28
- pseudosciences26
- quincentennial32
- radiolucencies24
- reaccelerating24
- recalcitrances25
- recentrifuging27
- recommencement31
- reconcentrated23
- reconcentrates22
- reconnaissance23
- recrudescences26
- reinforcements25
- rejuvenescence36
- reminiscential23
- rhinencephalic30
- rhinencephalon28
- rhombencephala32
- sacerdotalisms22
- sacerdotalists19
- semicentennial24
- semiporcelains25
- serviceability27
- serviceberries24
- shamefacedness27
- streptomycetes25
- subadolescents24
- submetacentric28
- successfulness27
- successionally26
- successiveness26
- superabundance28
- supereminences26
- susceptibility27
- susceptiveness26
- susceptivities25
- teleconference26
- telencephalons26
- teleprocessing24
- tercentenaries19
- tercentennials21
- thenceforwards27
- theocentricity25
- thermoreceptor25
- thoroughbraces27
- traceabilities21
- transcendences24
- transcendental22
- transcendently24
- translucencies24
- transmittances22
- transplacental24
- trichothecenes25
- ultradistances21
- ultraviolences25
- unsuccessfully31
- violoncellists25
- voicefulnesses27