synaeresis /sin-ēˈrə-sis/

1. The running together of two vowels into one or into a diphthong (phonetics)
2. The spontaneous expulsion of liquid from a gel (chem)

• unflinching
• unflinchingly
• unfloored
• unflush
• unflushed
• unflushes
• unflushing
• unflustered
• unfocused
• unfocussed
• unfold
• unfolded
• unfolder
• unfolders
• unfolding
• unfoldings
• unfolds
• unfollow
• unfollowed
• unfollowing
• unfollows
• unfool
• unfooled
• unfooling
• unfools