15-Letter Words Matching ___EC__________

There are 21 15-letter words that match ___EC__________. 8 are common words, such as DEFECTIVENESSES and EFFECTIVENESSES. A rarer one is SELECTIVENESSES. 12 words contain a doubled letter.

Full list 21

defectivenesseseffectivenessesimpeccabilitiesimpecuniousnessobjectivenessesteleconferencedteleconferencesunreconstructeddelectabilitieseffectualnessesgynecologicallyobjectificationobjectivizationsynecdochicallyaffectabilitiesdetectabilitiesimpecuniositiesinvectivenessesirreconcilablesresectabilitiesselectivenesses

About this list

Words
21 (8 common words)
Common example
defectivenesses
Rare example
selectivenesses
Doubled letters
12
Ending in S
15

Questions

How many 15-letter words matching ___ec__________ are there?

21. 8 of them are common words.

What is a common example?

DEFECTIVENESSES is among the common words in this set.