According to SOWPODS (the combination of Scrabble dictionaries
used around the world) there are 22 words with the pattern
-IS-I-I--. That is, nine letter words with 2nd letter I and 3rd
letter S and 5th letter I and 7th letter I. In alphabetical order,
they are:
cissified
disciding
disliking
dispirits
dissimile
fishified
fishifies
fissility
hispidity
histidine
histidins
misaiming
misciting
misdivide
misfiling
misfiring
misgiving
misliking
misliving
mistiming
sissified
viscidity