13-Letter Words Matching __I________S_

There are 37 13-letter words that match __I________S_. 14 are common words, such as CHILDLESSNESS and CLIMATOLOGIST. A rarer one is WHIMSICALNESS. In this set, E is the most frequent open letter (31 words). 27 words contain a doubled letter.

Full list 37

Common words

childlessnessclimatologistcriminologistfaithlessnessfrightfulnessfrivolousnessguilelessnessimitativenessleisurelinessnoiselessnesspointlessnessprimitiveness
childlessnessclimatologistcriminologistfaithlessnessfrightfulnessfrivolousnessguilelessnessimitativenessleisurelinessnoiselessnesspointlessnessprimitivenessshiftlessnessvoicelessnessblithefulnesschiaroscuristdeipnosophistepigrammatistquizzicalnessspinelessnessthigmotropismtrichromatismunilateralismunilateralistchildlikenessepigrammatismguiltlessnessidiomaticnesspainterlinessphilhellenismphilhellenistprimatologistspiritualnessthinkablenesstriliteralismuniversalnesswhimsicalness

About this list

Words
37 (14 common words)
Common example
childlessness
Rare example
whimsicalness
Doubled letters
27
Ending in S
23
Most frequent letter
E (31)

Questions

How many 13-letter words matching __i________s_ are there?

37. 14 of them are common words.

What is a common example?

CHILDLESSNESS is among the common words in this set.