15-Letter Words Starting With OB

There are 14 15-letter words that start with OB. 8 are common words, such as OBJECTIVENESSES and OBLIVIOUSNESSES. A rarer one is OBTAINABILITIES. In this set, I is the most frequent open letter (14 words). 8 words contain a doubled letter.

Full list 14

objectivenessesobliviousnessesobnoxiousnessesobsessivenessesobstructionismsobstructionistsobstructivenessobtrusivenessesobjectificationobjectivizationobservationallyobservabilitiesobstinatenessesobtainabilities

About this list

Words
14 (8 common words)
Common example
objectivenesses
Rare example
obtainabilities
Doubled letters
8
Ending in S
11
Most frequent letter
I (14)

Questions

How many 15-letter words starting with ob are there?

14. 8 of them are common words.

What is a common example?

OBJECTIVENESSES is among the common words in this set.