15-Letter Words Containing OI

There are 45 15-letter words that contain OI. 8 are common words, such as DISAPPOINTINGLY and DISAPPOINTMENTS. A rarer one is THYROIDECTOMIES. 12 words contain a doubled letter.

Full list 45

Common words

disappointinglydisappointmentshyperthyroidismhypothyroidismsmaladroitnessesnoiselessnessespointlessnessesvoicelessnessesadenoidectomiescoinstantaneousconnoisseurshipcorticosteroids
disappointinglydisappointmentshyperthyroidismhypothyroidismsmaladroitnessesnoiselessnessespointlessnessesvoicelessnessesadenoidectomiescoinstantaneousconnoisseurshipcorticosteroidscounterpointingmastoidectomiesprointerventionstereoisomerismallotetraploidsallotetraploidyamphidiploidiesautotetraploidsautotetraploidyblaxploitationsbourgeoisifyingchorioallantoicchorioallantoiscoinvestigatorsdiastereoisomereasygoingnesseserythropoietinsglucocorticoidsmicroinjectionsmicrometeoroidsnoncoincidencesnonexploitationnonexploitativephilanthropoidsphotoinductionsphotoionizationsigmoidoscopiessteroidogenesessteroidogenesisstoichiometriesstrongyloidosesstrongyloidosisthyroidectomies

About this list

Words
45 (8 common words)
Common example
disappointingly
Rare example
thyroidectomies
Doubled letters
12
Ending in S
31

Questions

How many 15-letter words containing oi are there?

45. 8 of them are common words.

What is a common example?

DISAPPOINTINGLY is among the common words in this set.