15-Letter Words Matching D_F____________

There are 15 15-letter words that match D_F____________. 5 are common words, such as DEFECTIVENESSES and DEFENSELESSNESS. A rarer one is DIFFUSIVENESSES. In this set, E is the most frequent open letter (15 words). 11 words contain a doubled letter.

Full list 15

defectivenessesdefenselessnessdefensivenessesdifferentiatingdifferentiationdefibrillationsdifferentiatorsdefeasibilitiesdefeminizationsdefenestrationsdefensibilitiesdifferentnessesdiffractometersdiffractometricdiffusivenesses

About this list

Words
15 (5 common words)
Common example
defectivenesses
Rare example
diffusivenesses
Doubled letters
11
Ending in S
12
Most frequent letter
E (15)

Questions

How many 15-letter words matching d_f____________ are there?

15. 5 of them are common words.

What is a common example?

DEFECTIVENESSES is among the common words in this set.