15-Letter Words Matching O___________S__

There are 22 15-letter words that match O___________S__. 11 are common words, such as OBJECTIVENESSES and OBLIVIOUSNESSES. A rarer one is OXIDOREDUCTASES. In this set, S is the most frequent open letter (20 words). 14 words contain a doubled letter.

Full list 22

objectivenessesobliviousnessesobnoxiousnessesobsessivenessesobstructionismsobstructionistsobtrusivenessesoffensivenessesoffhandednessesofficiousnessesoutspokennessesopportunenessesoverambitiouslyobstinatenessesoperationalismsoperationalistsoperativenessesovereagernessesoverenthusiasmsoversweetnessesovoviviparouslyoxidoreductases

About this list

Words
22 (11 common words)
Common example
objectivenesses
Rare example
oxidoreductases
Doubled letters
14
Ending in S
20
Most frequent letter
S (20)

Questions

How many 15-letter words matching o___________s__ are there?

22. 11 of them are common words.

What is a common example?

OBJECTIVENESSES is among the common words in this set.