Unscramble Impsisets

What is the meaning of word impsisets unscrambled?

What 9 letter words can be made from letters I M P S I S E T S:

1. pessimist - Definition of pessimist

Make more words by adding or removing letters

How many 8 letter words can you make from letters I M P S I S E T S?

1. missteps - Definition of missteps

2. pietisms - Definition of pietisms

Which 8 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling mpsisets
2) Removing the letter M and unscrambling ipsisets
3) Removing the letter P and unscrambling imsisets
4) Removing the letter S and unscrambling impisets
5) Removing the letter I and unscrambling impssets
6) Removing the letter S and unscrambling impsiets
7) Removing the letter E and unscrambling impsists
8) Removing the letter T and unscrambling impsises
9) Removing the letter S and unscrambling impsiset

More anagrams containing the letters I M P S I S E T S
impsisset impsisste mstsseipi sitissemp