15-Letter Words Containing AD

There are 94 15-letter words that contain AD. 25 are common words, such as ADMINISTRATIONS and ADMISSIBILITIES. A rarer one is XERORADIOGRAPHY. In this set, I is the most frequent open letter (74 words). 30 words contain a doubled letter.

Full list 94

Common words

administrationsadmissibilitiesadventurousnessambassadorshipsdisadvantageoushotheadednessesinadmissibilitylackadaisicallylevelheadednessmaladroitnessespigheadednessespreadolescences
administrationsadmissibilitiesadventurousnessambassadorshipsdisadvantageoushotheadednessesinadmissibilitylackadaisicallylevelheadednessmaladroitnessespigheadednessespreadolescencesquadruplicatingquadruplicationradicalizationsradioactivitiesradiotelegraphsradiotelegraphyradiotelephonesradiotherapistssadomasochisticsteadfastnessestraditionalismstraditionalistswrongheadednessadenocarcinomasadenoidectomiesadmirablenessesasclepiadaceousautoradiographsbroadmindednesscontradictorilylightheadednesslymphadenopathyradiometricallyradiomicrometerradiophotographradiotelephonicadenohypophysesadenohypophysisadjustabilitiesadrenalectomiesadversarinessesadvisablenessesantiradicalismsantitraditionalautoradiographybiodegradationsclearheadednesscomradelinessescontradictoriescounterblockadecountershadingscyproheptadineseggheadednessesfatheadednessesheadmastershipsineradicabilityintergradationslymphadenitisesmaladministeredmicroradiographnonadditivitiesoveradjustmentsoveradvertisingparadoxicalnessphotodegradablepinheadednessespostadolescentspostirradiationquadruplicitiesradioautographsradioautographyradiobiologicalradiobiologistsradiochemicallyradioprotectionradioprotectiveradiostrontiumsradiotelemetricretrogradationsroundheadednessspreadabilitiesstadtholderatesstadtholdershipswellheadednesstetramethylleadtraditionalizedtraditionalizesultrademocraticunadulteratedlyuntraditionallyupgradabilitiesxeroradiography

About this list

Words
94 (25 common words)
Common example
administrations
Rare example
xeroradiography
Doubled letters
30
Ending in S
60
Most frequent letter
I (74)

Questions

How many 15-letter words containing ad are there?

94. 25 of them are common words.

What is a common example?

ADMINISTRATIONS is among the common words in this set.