15-Letter Words Matching ____D________S_

There are 12 15-letter words that match ____D________S_. 3 are common words, such as BLOODTHIRSTIEST and EXPEDITIOUSNESS. A rarer one is UNENDURABLENESS. In this set, E is the most frequent open letter (12 words). 10 words contain a doubled letter.

Full list 12

bloodthirstiestexpeditiousnessinjudiciousnessbroadmindednesshereditarianismstandoffishnessbloodguiltinessclandestinenessparadoxicalnesspseudoscientistroundheadednessunendurableness

About this list

Words
12 (3 common words)
Common example
bloodthirstiest
Rare example
unendurableness
Doubled letters
10
Ending in S
9
Most frequent letter
E (12)

Questions

How many 15-letter words matching ____d________s_ are there?

12. 3 of them are common words.

What is a common example?

BLOODTHIRSTIEST is among the common words in this set.