11-Letter Words Matching ___A_D_____

There are 23 11-letter words that match ___A_D_____. 3 are common words, such as HAZARDOUSLY and RETARDATION. A rarer one is VIVANDIERES. In this set, N is the most frequent open letter (20 words). 4 words contain a doubled letter.

Full list 23

hazardouslyretardationsquanderingdemandinglyincardinateparaldehydesquandererssubauditionbemaddeningincandescedincandescesminaudieresnonadditivenonauditoryregardfullyrehardeningrelandscaperewardinglyritardandosstrandlinesunbandagingunhandinessvivandieres

About this list

Words
23 (3 common words)
Common example
hazardously
Rare example
vivandieres
Doubled letters
4
Ending in S
7
Most frequent letter
N (20)

Questions

How many 11-letter words matching ___a_d_____ are there?

23. 3 of them are common words.

What is a common example?

HAZARDOUSLY is among the common words in this set.