15 letters
- psychologically35
- psychopathology35
- querulousnesses29
- radiobiological26
- radiobiologists22
- recolonizations30
- remythologizing37
- revalorizations30
- rheumatologists24
- rhinencephalons29
- rhombencephalon34
- roentgenologies22
- roentgenologist22
- schlockmeisters31
- scintillometers24
- sedimentologies23
- sedimentologist23
- semicolonialism27
- semilogarithmic29
- sociobiological28
- sociobiologists24
- stereologically25
- strongyloidoses22
- strongyloidosis22
- subdevelopments32
- syllogistically28
- symptomatologic32
- technologically31
- toxicologically35
- tremulousnesses22
- trihalomethanes24
- troublousnesses22
- unchronological30
- underemployment31
- unemployability32
- unmelodiousness24
- ventriloquially35
- ventriloquistic34
- ventriloquizing43
- whistleblowings31