15-Letter Words Matching _I_H___________

There are 20 15-letter words that match _I_H___________. 3 are common words, such as DISHEARTENINGLY and PIGHEADEDNESSES. A rarer one is WITHDRAWNNESSES. In this set, N is the most frequent open letter (18 words). 11 words contain a doubled letter.

Full list 20

dishearteninglypigheadednessesrighteousnessesdisharmoniouslydisheartenmentslightheadednesspithecanthropussightlessnessesdichlorobenzenedichloroethanesdichotomizationdichotomousnessdiphenhydraminedithiocarbamatedithyrambicallylightfastnesseslightsomenessespinheadednessestightfistednesswithdrawnnesses

About this list

Words
20 (3 common words)
Common example
dishearteningly
Rare example
withdrawnnesses
Doubled letters
11
Ending in S
13
Most frequent letter
N (18)

Questions

How many 15-letter words matching _i_h___________ are there?

20. 3 of them are common words.

What is a common example?

DISHEARTENINGLY is among the common words in this set.