14-Letter Words Matching A_I___________

There are 16 14-letter words that match A_I___________. 3 are common words, such as ANIMADVERSIONS and ARITHMETICALLY. A rarer one is AXISYMMETRICAL. In this set, I is the most frequent open letter (15 words). 4 words contain a doubled letter.

Full list 16

animadversionsarithmeticallyarithmeticiansacidificationsanisometropiasazidothymidinealienabilitiesamicablenessesaminoaciduriasaminopeptidaseaminophyllinesamitriptylinesanimalizationsaxiomatisationaxiomatizationaxisymmetrical

About this list

Words
16 (3 common words)
Common example
animadversions
Rare example
axisymmetrical
Doubled letters
4
Ending in S
10
Most frequent letter
I (15)

Questions

How many 14-letter words matching a_i___________ are there?

16. 3 of them are common words.

What is a common example?

ANIMADVERSIONS is among the common words in this set.