14-Letter Words Matching D_________R___

There are 13 14-letter words that match D_________R___. 3 are common words, such as DISCIPLINARIAN and DISENCUMBERING. A rarer one is DUMBFOUNDERING. In this set, I is the most frequent open letter (13 words). 0 words contain a doubled letter.

Full list 13

disciplinariandisencumberingdisequilibriumdaredeviltriesdistributariesdensitometriesdiamondiferousdisciplinarilydisciplinaritydisequilibratedispensatoriesdisrememberingdumbfoundering

About this list

Words
13 (3 common words)
Common example
disciplinarian
Rare example
dumbfoundering
Doubled letters
0
Ending in S
5
Most frequent letter
I (13)

Questions

How many 14-letter words matching d_________r___ are there?

13. 3 of them are common words.

What is a common example?

DISCIPLINARIAN is among the common words in this set.