13-Letter Words Containing SIA

There are 12 13-letter words that contain SIA. 2 are common words, such as CONTROVERSIAL and ECCLESIASTICS. A rarer one is SYNAESTHESIAS. In this set, R is the most frequent open letter (10 words). 4 words contain a doubled letter.

Full list 12

controversialecclesiasticsanaphrodisiacaphrodisiacalhyperesthesiathermesthesiahyperkinesiasparaesthesiaspreeclampsiasprussianisingprussianizingsynaesthesias

About this list

Words
12 (2 common words)
Common example
controversial
Rare example
synaesthesias
Doubled letters
4
Ending in S
5
Most frequent letter
R (10)

Questions

How many 13-letter words containing sia are there?

12. 2 of them are common words.

What is a common example?

CONTROVERSIAL is among the common words in this set.