13 letters
- reformability25
- reformational21
- reformatories19
- remanufacture25
- rematerialize26
- renormalizing30
- resystematize27
- rhabdomancers26
- rhabdomancies26
- rhadamanthine23
- rheumatically26
- romanizations27
- romanticising23
- romanticizing32
- sadomasochism25
- sadomasochist22
- salesmanships23
- schematically28
- schismatizing33
- schoolmarmish27
- schoolmasters22
- sclerenchymas28
- sclerodermata21
- semasiologies19
- semiautomatic23
- semipermanent24
- smallholdings25
- somatological23
- somatopleures21
- somatosensory19
- somatostatins17
- somatotrophin22
- somatotropins20
- spermatocytes24
- spermatogenic25
- spermatogonia22
- spermatophore24
- spermatophyte26
- spermatozoans29
- spermatozoids29
- spokesmanship29
- sportsmanlike25
- sportsmanship25
- statesmanlike22
- statesmanship22
- stationmaster17
- stigmasterols19
- stigmatically25
- stromatolites17
- stromatolitic20
- submandibular27
- summabilities24
- summarization30
- superdiplomat25
- superhumanity26
- supermajority31
- supernormally25
- superromantic24
- supersalesman22
- swordsmanship26
- systematising21
- systematizers27
- systematizing30
- telemarketers21
- telemarketing24
- thaumaturgies22
- thaumaturgist22
- transformable24
- transhumances24
- traumatically24
- trichromatism24
- troublemakers25
- troublemaking28
- ultramarathon21
- ultraromantic22
- uncharismatic26
- unconformable29
- unconformably31
- unconsummated27
- uncustomarily25
- underclassman24
- underestimate19
- ungentlemanly26
- ungrammatical27
- unimaginative25
- uninformative26
- unmaliciously26
- unmanipulated25
- unmanlinesses21
- unperformable28
- unproblematic28
- unreclaimable26
- unsymptomatic29
- upperclassman28
- watermanships25
- whigmaleeries24
- womanlinesses22