14-Letter Words Matching S___________I_

There are 21 14-letter words that match S___________I_. 2 are common words, such as SPIRITUALISTIC and SUBMICROSCOPIC. A rarer one is SUPERSYMMETRIC. In this set, C is the most frequent open letter (20 words). 2 words contain a doubled letter.

Full list 21

spiritualisticsubmicroscopicsomnambulisticspectrographicspermiogenesisstaphylococcicstoichiometricstreptothricinsubatmosphericsuperpatrioticsedimentologicserodiagnosticserotoninergicspermatophyticsporotrichosisstereoisomericstereospecificsubjectivisticsubmetacentricsubtherapeuticsupersymmetric

About this list

Words
21 (2 common words)
Common example
spiritualistic
Rare example
supersymmetric
Doubled letters
2
Ending in S
2
Most frequent letter
C (20)

Questions

How many 14-letter words matching s___________i_ are there?

21. 2 of them are common words.

What is a common example?

SPIRITUALISTIC is among the common words in this set.