12-Letter Words Matching _____T_D____

There are 16 12-letter words that match _____T_D____. 2 are common words, such as INDEBTEDNESS and LONGITUDINAL. A rarer one is UNWONTEDNESS. In this set, N is the most frequent open letter (15 words). 12 words contain a doubled letter.

Full list 16

indebtednesslongitudinaldejectednessuprootednessaffectednessdementednessdipeptidasesdirectednesseducatednessexpectednessintertidallyoutdatednessplatitudinalspiritednessunfastidiousunwontedness

About this list

Words
16 (2 common words)
Common example
indebtedness
Rare example
unwontedness
Doubled letters
12
Ending in S
13
Most frequent letter
N (15)

Questions

How many 12-letter words matching _____t_d____ are there?

16. 2 of them are common words.

What is a common example?

INDEBTEDNESS is among the common words in this set.