Words that start with 'ino' and contain 'f'

How many possible words can you make using this list?
There are up to 10 words which cover all combinations.

Which word on this page ranks as the most common?
As far as well-known words go, there's 'inoffensive', which ranks as the 23728^th most common word.

What is the most unusual word that starts with 'ino' and includes 'f'?
The most weird word in our opinion is 'inofficious'. The definition of 'inofficious' is as follows: "1. Indifferent to obligation or duty. [Obs.] Thou drown'st thyself in inofficious sleep. B. Jonson. 2. Not officious; not civil or attentive. [Obs.] Jonhson. 3. (Law) Regardless of natural obligation; contrary to natural duty; unkind; -- commonly said of a testament made without regard to natural obligation, or by...".

What is the longest word you can assemble with words that start with 'ino' and include 'f'?
There are 15 letters in the word 'inoffensiveness', which makes it the longest word we have.