Here's what rhymes with porousness.
Words that almost rhyme with porousness
artifice dorsalis marchioness chapatis botanists communis thoughtfulness psittacosis cockatrice moralists pharmacists unconsciousness archivists abortionists soporifics colonists competence dramatists optimists dogmatists formalists populists congregates economists geologists optometrists extortionists contortionists ecologists thyrotoxicosis geopolitics ideologists agronomists audiologists cytologists penologists technologists ethnologists radiologists genealogists oncologists hydrologists histologists mycologists petrologists virologists herpetologists antiabortionists urbanologists sociologists archaeologists meteorologists cardiologists dermatologists ophthalmologists sexologists ichthyologists hematologists haematologists numerologists gerontologists immunologists toxicologists climatologists cosmetologists campanologists criminologists bacteriologists epidemiologists microbiologists musicologists paleontologists palaeontologists pharmacologists