15-Letter Words Matching ____AR_________

There are 18 15-letter words that match ____AR_________. 5 are common words, such as BASTARDIZATIONS and COMPARABILITIES. A rarer one is UNGUARDEDNESSES. 7 words contain a doubled letter.

Full list 18

bastardizationscomparabilitiesdastardlinessesniggardlinessesnonparticipantsbarbarousnessesdisharmoniouslydisparatenesseshierarchizationantiarrhythmicscomparativenessglutaraldehydesnonbarbituratesnoncarcinogenicnonpartisanshipoverarticulatedoverarticulatesunguardednesses

About this list

Words
18 (5 common words)
Common example
bastardizations
Rare example
unguardednesses
Doubled letters
7
Ending in S
13

Questions

How many 15-letter words matching ____ar_________ are there?

18. 5 of them are common words.

What is a common example?

BASTARDIZATIONS is among the common words in this set.