13-Letter Words Matching __F________S_

There are 19 13-letter words that match __F________S_. 8 are common words, such as DEFECTIVENESS and DEFENSIVENESS. A rarer one is UNFEELINGNESS. 17 words contain a doubled letter.

Full list 19

defectivenessdefensivenesseffectivenessnefariousnessoffensivenessoffhandednessofficiousnessunfriendliestaffectivenessdifferentnesseffectualnessinfallibilismreflexivenessreflexologistaffectionlessdiffusivenesseffortfulnessinfusiblenessunfeelingness

About this list

Words
19 (8 common words)
Common example
defectiveness
Rare example
unfeelingness
Doubled letters
17
Ending in S
16

Questions

How many 13-letter words matching __f________s_ are there?

19. 8 of them are common words.

What is a common example?

DEFECTIVENESS is among the common words in this set.