What are some seven letter words with 2nd letter I and 4th letter E and 5th letter N and 7th letter R

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 4 words with the pattern -I-EN-R. That is, seven letter words with 2nd letter I and 4th letter E and 5th letter N and 7th letter R. In alphabetical order, they are:

bigener
livener
ripener
widener