unflappable unflappably unflapped unflashy unflattering unflatteringly unflavored unflavoured unflawed unfledged
| unflesh unfleshed unfleshes unflexed unflinching unflinchingly (current term) unfluctuating unflurried unflush unflushed
| unflushes unflustered unfluted unflyable unfocused unfocussed unfoiled unfold unfolded unfolder
|