14-Letter Words Matching _E_____F______

There are 12 14-letter words that match _E_____F______. 4 are common words, such as MEANINGFULNESS and NEGLECTFULNESS. A rarer one is REVENGEFULNESS. 8 words contain a doubled letter.

Full list 12

meaningfulnessneglectfulnessrespectfulnessteleconferenceremorsefulnessdelightfulnessdespitefulnessmethoxyfluraneretransferringretransformingretroreflectorrevengefulness

About this list

Words
12 (4 common words)
Common example
meaningfulness
Rare example
revengefulness
Doubled letters
8
Ending in S
7

Questions

How many 14-letter words matching _e_____f______ are there?

12. 4 of them are common words.

What is a common example?

MEANINGFULNESS is among the common words in this set.