15-Letter Words Matching ___O________S__

There are 53 15-letter words that match ___O________S__. 15 are common words, such as ATROCIOUSNESSES and BLOODLESSNESSES. A rarer one is UNBOUNDEDNESSES. In this set, S is the most frequent open letter (52 words). 33 words contain a doubled letter.

Full list 53

Common words

atrociousnessesbloodlessnessescolorfastnessescolorlessnessesferociousnesseshonorablenesseshumorlessnesseshypothyroidismsinconspicuouslyincorrectnessesinnocuousnesseslaboriousnesses
atrociousnessesbloodlessnessescolorfastnessescolorlessnessesferociousnesseshonorablenesseshumorlessnesseshypothyroidismsinconspicuouslyincorrectnessesinnocuousnesseslaboriousnessesmelodiousnessesobnoxiousnessesunworldlinessesassociationismserroneousnessesfavorablenesseshypochondriaseshypochondriasisopportunenessesreconditenessesaerodynamicistsassociationistsautochthonouslybelongingnessescytogeneticistseffortfulnessesendometriosisesendoparasitismsenjoyablenessesfeloniousnesseshemochromatoseshemochromatosishexosaminidasesholometabolismsidiomaticnessesillogicalnessesimmovablenessesincorruptnessesinsolublenessesmemorablenessesmonochromatismsmononucleosisesnonobjectivismsnonobjectivistsremovablenessesreposefulnessessecondarinessesstrongyloidosesstrongyloidosistenosynovitisesunboundednesses

About this list

Words
53 (15 common words)
Common example
atrociousnesses
Rare example
unboundednesses
Doubled letters
33
Ending in S
51
Most frequent letter
S (52)

Questions

How many 15-letter words matching ___o________s__ are there?

53. 15 of them are common words.

What is a common example?

ATROCIOUSNESSES is among the common words in this set.