13-Letter Words Matching ____US_______

There are 24 13-letter words that match ____US_______. 12 are common words, such as DIFFUSENESSES and ENCRUSTATIONS. A rarer one is PERFUSIONISTS. In this set, S is the most frequent open letter (22 words). 16 words contain a doubled letter.

Full list 24

diffusenessesencrustationsexclusivenessexclusivitiesinclusivenessincrustationsintrusivenessnonsustainingobtrusivenesspercussionistprofusenessesuntrustworthyreclusivenessrumbustiouslyseclusivenessdiffusionismsdiffusionistsdiffusivenessdiffusivitiesexclusionistsexhaustlesslymolluscicidalmolluscicidesperfusionists

About this list

Words
24 (12 common words)
Common example
diffusenesses
Rare example
perfusionists
Doubled letters
16
Ending in S
18
Most frequent letter
S (22)

Questions

How many 13-letter words matching ____us_______ are there?

24. 12 of them are common words.

What is a common example?

DIFFUSENESSES is among the common words in this set.