Words that start with 'u' and contain 'ifi'

Which is the most unusual word that starts with 'u' and includes 'ifi'?
Our favorite unusual word from this list is 'unsignificant'. The definition of 'unsignificant' is as follows: "Insignificant. [Obs.] Holland.". Credit to the Oxford Dictionary.

What is the highest scoring word in Scrabble available from this list ?
With an enormous 204 entries, your best bet is to consider 'uglified' which scores 13 points.

How many usable words could one make using the combination which you've searched for?
There are a maximum of 204 entries.

How many characters are in the longest word on this list?
The longest word that's possible to assemble from words that start with 'u' and include 'ifi' is 'unclassifiableness', and it is made up of 18 letters.

What is the most popular word that starts with 'u' and includes 'ifi' in the dictionary?
As far as popular words go, there's 'unqualified', which is the 24305^th most common word.