12 Letter Words Starting with O, Containing R and Ending in SS

You're someone who knows what they want, huh? This list of 12 letter words that start with O, contain R and end in SS sure makes that pretty clear. But fret not — we got it back to you in no time. We're good at what we do, what can we say? We've made it as easy as possible for you to find exactly what you need, including 12 letter words that start with O and 12 letter words that end in SS. If that's something you're also looking for, you perfectionist, you.

12 letter words
obdurateness
operatorless
oracularness
orchardgrass
ordinariness
outsiderness
overboldness
overcompress
overfineness
overfondness
overfullness
overkindness
overniceness
overrashness
overripeness