13-Letter Words Matching __________F__

There are 22 13-letter words that match __________F__. 5 are common words, such as BULLETPROOFED and DISRESPECTFUL. A rarer one is UNDERSHERIFFS. In this set, E is the most frequent open letter (19 words). 9 words contain a doubled letter.

Full list 22

bulletproofeddisrespectfulnonscientificquarterstaffstablespoonfulcycloparaffingeoscientificnitroparaffinprescientificantiaircraftsbioscientificcandlesnuffergemeinschaftsgesellschaftsinfraspecificinterspecificintraspecificnonmeaningfulsuperpowerfulsuperterrificultrapowerfulundersheriffs

About this list

Words
22 (5 common words)
Common example
bulletproofed
Rare example
undersheriffs
Doubled letters
9
Ending in S
5
Most frequent letter
E (19)

Questions

How many 13-letter words matching __________f__ are there?

22. 5 of them are common words.

What is a common example?

BULLETPROOFED is among the common words in this set.