12 Letter Words Starting with O and Containing US

When you need a list of 12 letter words that start with O and contain US, 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 US to find some more options — if you're feeling a little flexible.

12 letter words
obfuscations
obreptitious
obsequiously
obstreperous
obstropalous
obstropulous
obtusenesses
ochroleucous
octastichous
octopetalous
octosepalous
octostichous
odiousnesses
odontomatous
oesophaguses
oleaginously
oleoresinous
oligophagous
ombrophilous
ombrophobous
omnivorously
oncornavirus
ophiolatrous
ophiophagous
opisthotonus
optoacoustic
orchidaceous
orichalceous
orthocousins
orthopterous
orthotropous
ostentatious
osteodermous
outblustered
outlustering
outrageously
outthrusting
overarousals
overcautious
overeffusive
overfocusing
overfocussed
overfocusses
overfussiest
overgenerous
overtrousers
overtrusting
oxycephalous