15-Letter Words Matching ______D_____S__

There are 21 15-letter words that match ______D_____S__. 6 are common words, such as DASTARDLINESSES and HOTHEADEDNESSES. A rarer one is UNGUARDEDNESSES. 15 words contain a doubled letter.

Full list 21

dastardlinesseshotheadednessesniggardlinessesoffhandednessespigheadednessesunworldlinessespsychodiagnosisantifederalistsantiradicalismseggheadednessesfatheadednessesimmunodiagnosesimmunodiagnosislymphadenitisesmisguidednessesnonrandomnessespinheadednessessteroidogenesessteroidogenesisunboundednessesunguardednesses

About this list

Words
21 (6 common words)
Common example
dastardlinesses
Rare example
unguardednesses
Doubled letters
15
Ending in S
21

Questions

How many 15-letter words matching ______d_____s__ are there?

21. 6 of them are common words.

What is a common example?

DASTARDLINESSES is among the common words in this set.