15-Letter Words Matching ___________IA__

There are 25 15-letter words that match ___________IA__. 6 are common words, such as DISCIPLINARIANS and INTERCOLLEGIATE. A rarer one is UNIFORMITARIANS. In this set, N is the most frequent open letter (23 words). 6 words contain a doubled letter.

Full list 25

Common words

disciplinariansintercollegiatelatitudinariansplenipotentiaryseptuagenariansvaletudinarianscircumstantiateconsubstantiateeconometricianssesquipedalianstetrabranchiatededifferentiate
disciplinariansintercollegiatelatitudinariansplenipotentiaryseptuagenariansvaletudinarianscircumstantiateconsubstantiateeconometricianssesquipedalianstetrabranchiatededifferentiateethnohistoriansichthyosauriansnonutilitariansphotodissociatepredestinarianspremillenariansprotohistoriansquincentennialssabermetricianssemicentennialssolitudinarianssubproletariatsuniformitarians

About this list

Words
25 (6 common words)
Common example
disciplinarians
Rare example
uniformitarians
Doubled letters
6
Ending in S
18
Most frequent letter
N (23)

Questions

How many 15-letter words matching ___________ia__ are there?

25. 6 of them are common words.

What is a common example?

DISCIPLINARIANS is among the common words in this set.