13-Letter Words Matching I_________S__

There are 39 13-letter words that match I_________S__. 16 are common words, such as IGNOMINIOUSLY and ILLICITNESSES. A rarer one is ISOCHRONOUSLY. In this set, N is the most frequent open letter (36 words). 21 words contain a doubled letter.

Full list 39

Common words

ignominiouslyillicitnessesillustriouslyimmunologistsimpecuniouslyimpiousnessesincongruouslyincredulouslyindustriouslyinexactnessesinjudiciouslyintravenouses
ignominiouslyillicitnessesillustriouslyimmunologistsimpecuniouslyimpiousnessesincongruouslyincredulouslyindustriouslyinexactnessesinjudiciouslyintravenousesintravenouslyirksomenessesisolationismsisolationistsignoblenessesimmensenessesincendiarismsinsipidnessesintuitionismsirreligiouslyilliberalismsimmunogenesesimmunogenesisinflationismsinflationistsingrownnessesinheritressesinhumannessesinitialnessesinstantnessesintensenessesinterdiffusedinterdiffusesintuitionistsiontophoresesiontophoresisisochronously

About this list

Words
39 (16 common words)
Common example
ignominiously
Rare example
isochronously
Doubled letters
21
Ending in S
28
Most frequent letter
N (36)

Questions

How many 13-letter words matching i_________s__ are there?

39. 16 of them are common words.

What is a common example?

IGNOMINIOUSLY is among the common words in this set.