14-Letter Words Matching ___I_____S____

There are 23 14-letter words that match ___I_____S____. 7 are common words, such as ANTIDEPRESSANT and METICULOUSNESS. A rarer one is THRIFTLESSNESS. 20 words contain a doubled letter.

Full list 23

antidepressantmeticulousnessmotionlessnessomnivorousnessridiculousnesssolicitousnessvociferousnessantidepressivefelicitousnessindigenousnesslibidinousnessretinoblastomatraitorousnessantiaggressionanticorrosivesantidepressionantirecessionsassistantshipsdisinterestingmisimpressionsresistlessnesssolicitorshipsthriftlessness

About this list

Words
23 (7 common words)
Common example
antidepressant
Rare example
thriftlessness
Doubled letters
20
Ending in S
17

Questions

How many 14-letter words matching ___i_____s____ are there?

23. 7 of them are common words.

What is a common example?

ANTIDEPRESSANT is among the common words in this set.