12-Letter Words Matching ____H_A_____

There are 20 12-letter words that match ____H_A_____. 14 are common words, such as BULLHEADEDLY and DEATHWATCHES. A rarer one is SOFTHEADEDLY. In this set, S is the most frequent open letter (17 words). 4 words contain a doubled letter.

Full list 20

bullheadedlydeathwatcheshardheadedlymarshmallowsmatchmakingsnortheasternnortheasterspsychiatriespsychiatristpsychoactivesoothsayingssoutheasternsoutheasterswatchmakingsbenchmarkingbrachiationsroughcastingbenchwarmersmarshmallowysoftheadedly

About this list

Words
20 (14 common words)
Common example
bullheadedly
Rare example
softheadedly
Doubled letters
4
Ending in S
10
Most frequent letter
S (17)

Questions

How many 12-letter words matching ____h_a_____ are there?

20. 14 of them are common words.

What is a common example?

BULLHEADEDLY is among the common words in this set.