15-Letter Words Matching ________O____S_

There are 85 15-letter words that match ________O____S_. 31 are common words, such as ACRIMONIOUSNESS and ADVENTUROUSNESS. A rarer one is UNMELODIOUSNESS. 66 words contain a doubled letter.

Full list 85

Common words

acrimoniousnessadventurousnesscarnivorousnessceremoniousnessconspicuousnesscontentiousnessendocrinologistexpeditiousnessflirtatiousnessillustriousnessimpecuniousnessincongruousness
acrimoniousnessadventurousnesscarnivorousnessceremoniousnessconspicuousnesscontentiousnessendocrinologistexpeditiousnessflirtatiousnessillustriousnessimpecuniousnessincongruousnessindustriousnessinjudiciousnessmellifluousnessmeritoriousnessmischievousnessophthalmologistpretentiousnessprofessionalismpunctiliousnessquarrelsomenessrepetitiousnesssuperfluousnesstempestuousnesstendentiousnesstreacherousnessunconsciousnessunrighteousnessunwholesomenessventuresomenessantinationalistbiotechnologistcompendiousnessconventionalismconventionalistdeleteriousnessduplicitousnessefficaciousnessgeochronologisthermaphroditismhomogeneousnessignominiousnessincredulousnessirreligiousnessmagnanimousnessodoriferousnessperfunctorinessperspicuousnesspestiferousnessprecipitousnesspromiscuousnesspsychobiologistrumbustiousnesssententiousnessstereoisomerismantirationalismantirationalistatrabiliousnessblasphemousnesschemotaxonomistchronobiologistconfessionalismconfessionalistcryptozoologistdaguerreotypistdichotomousnessenantiomorphismfissiparousnessfloriferousnessgeomorphologistmountainousnessnecessitousnessopprobriousnessoverzealousnessphenomenologistprestigiousnessroentgenologistsaponaceousnesssedimentologistspontaneousnesssynchronousnesstemerariousnesstroublesomenessunmelodiousness

About this list

Words
85 (31 common words)
Common example
acrimoniousness
Rare example
unmelodiousness
Doubled letters
66
Ending in S
61

Questions

How many 15-letter words matching ________o____s_ are there?

85. 31 of them are common words.

What is a common example?

ACRIMONIOUSNESS is among the common words in this set.