13-Letter Words Containing HAP

There are 12 13-letter words that contain HAP. 6 are common words, such as HAPHAZARDNESS and HAPLESSNESSES. A rarer one is NONHAPPENINGS. In this set, S is the most frequent open letter (11 words). 10 words contain a doubled letter.

Full list 12

haphazardnesshaplessnesseshappenstancesshapelessnessshapelinessesunhappinesseschaplainshipsherniorrhaphyrhapsodicallyhaphazardrieshappenchancesnonhappenings

About this list

Words
12 (6 common words)
Common example
haphazardness
Rare example
nonhappenings
Doubled letters
10
Ending in S
10
Most frequent letter
S (11)

Questions

How many 13-letter words containing hap are there?

12. 6 of them are common words.

What is a common example?

HAPHAZARDNESS is among the common words in this set.