12 Letter Words Starting with O and Containing SS

When you need a list of 12 letter words that start with O and contain SS, who you gonna call? WordList Finder! Word lists exactly like these 12 letter words are only a few quick finger taps away on our site. Dive into words that start with O or words with SS to find some more options — if you're feeling a little flexible.

12 letter words
oafishnesses
obcompressed
obdurateness
objectlessly
oblatenesses
obligingness
obsessionist
obsoleteness
obtusenesses
occultnesses
odiousnesses
offendresses
offishnesses
oiltightness
omissiveness
opaquenesses
operatorless
oppositeness
oppressingly
oppressively
oracularness
orchardgrass
ordinariness
ornatenesses
ornerinesses
ossification
otiosenesses
outcrossings
outdatedness
outgoingness
outmodedness
outpassioned
outsiderness
overasserted
overboldness
overclassify
overcompress
overdressing
overfineness
overfocussed
overfocusses
overfondness
overfullness
overfussiest
overgrassing
overissuance
overkindness
overniceness
overpressing
overpressure
overrashness
overripeness
overstressed
overstresses
owlishnesses