15-Letter Words Matching __ST___________

There are 75 15-letter words that match __ST___________. 26 are common words, such as BASTARDIZATIONS and DASTARDLINESSES. A rarer one is WESTERNISATIONS. In this set, I is the most frequent open letter (71 words). 26 words contain a doubled letter.

Full list 75

Common words

bastardizationsdastardlinessesdestabilizationdestructibilitydestructivenessdistastefulnessdistinctivenessdistinguishablegastroenteritisgastronomicallyhistoriographerinstantaneously
bastardizationsdastardlinessesdestabilizationdestructibilitydestructivenessdistastefulnessdistinctivenessdistinguishablegastroenteritisgastronomicallyhistoriographerinstantaneouslyinstitutionallyinstrumentalistinstrumentalityinstrumentationobstructionismsobstructionistsobstructivenesspasteurizationspostconsonantalrestrengtheningrestrictivenesssystematizationtastelessnesseswesternizationsabstractionismsabstractionistsdistinguishablydistributorshipdistrustfulnessgastrologicallyhistocompatiblehistoriographicinstructorshipsinstrumentalismmastoidectomiesmistranslationsmistrustfulnesspestiferousnesspostoperativelycustomarinessesdestitutenessesdestructionistsdestructivitiesdistemperaturesdistractibilitydistressfulnesshistochemicallyhistopathologichistophysiologyhysterectomizedinstantaneitiesinstructivenessmasterfulnessesmistranscribingobstinatenessespostadolescentspostapocalypticpostdevaluationpostdivestitureposthemorrhagicpostinoculationpostirradiationpostmastershipspostmillenarianpostpollinationpostproductionspoststimulationpoststimulatoryposttransfusionpostvaccinationrestrictionismsrestrictionistswesternisations

About this list

Words
75 (26 common words)
Common example
bastardizations
Rare example
westernisations
Doubled letters
26
Ending in S
37
Most frequent letter
I (71)

Questions

How many 15-letter words matching __st___________ are there?

75. 26 of them are common words.

What is a common example?

BASTARDIZATIONS is among the common words in this set.