15-Letter Words Matching A________N_____

There are 28 15-letter words that match A________N_____. 11 are common words, such as AGREEABLENESSES and AIRWORTHINESSES. A rarer one is AVAILABLENESSES. In this set, S is the most frequent open letter (26 words). 20 words contain a doubled letter.

Full list 28

Common words

agreeablenessesairworthinessesambitiousnessesamorphousnessesanalogousnessesarbitrarinessesassertivenessesassiduousnessesatrociousnessesattentivenessesaudaciousnessesadmirablenesses
agreeablenessesairworthinessesambitiousnessesamorphousnessesanalogousnessesarbitrarinessesassertivenessesassiduousnessesatrociousnessesattentivenessesaudaciousnessesadmirablenessesanomalousnessesanticholinergicantinationalistacceptingnessesadversarinessesadvisablenessesaggregatenessesambiguousnessesanonymousnessesanticarcinogensantiobscenitiesantirationalismantirationalistantirationalityautochthonouslyavailablenesses

About this list

Words
28 (11 common words)
Common example
agreeablenesses
Rare example
availablenesses
Doubled letters
20
Ending in S
22
Most frequent letter
S (26)

Questions

How many 15-letter words matching a________n_____ are there?

28. 11 of them are common words.

What is a common example?

AGREEABLENESSES is among the common words in this set.