15-Letter Words Matching ____R________T_

There are 42 15-letter words that match ____R________T_. 12 are common words, such as ANTHROPOLOGISTS and DESTRUCTIBILITY. A rarer one is SUPPRESSIBILITY. In this set, I is the most frequent open letter (39 words). 11 words contain a doubled letter.

Full list 42

Common words

anthropologistsdestructibilitydisarrangementsdisgruntlementsheterosexualityincorrigibilityinstrumentalityintercollegiateobstructionistsprearrangementssuperintendentsunderstatements
anthropologistsdestructibilitydisarrangementsdisgruntlementsheterosexualityincorrigibilityinstrumentalityintercollegiateobstructionistsprearrangementssuperintendentsunderstatementsabstractionistsanthropophagitecompressibilitycontractibilitycontrollabilityimperishabilityinterminabilitylabyrinthodontsoverrefinementsprogrammabilityantirationalitydestructionistsdistractibilitydivertissementshypermodernistshypermutabilityhyperreactivityinterfraternityintertwinementsinteruniversityintervisibilityliturgiologistsreservationistsrestrictionistssemiretirementssubproletariatssuperabsorbentssupercontinentssuperplasticitysuppressibility

About this list

Words
42 (12 common words)
Common example
anthropologists
Rare example
suppressibility
Doubled letters
11
Ending in S
21
Most frequent letter
I (39)

Questions

How many 15-letter words matching ____r________t_ are there?

42. 12 of them are common words.

What is a common example?

ANTHROPOLOGISTS is among the common words in this set.