frowy or froughy (Spenser frowie) /frōˈi or frowˈi/

1. Musty or rancid (Spenser)
2. (of timber) soft and brittle (dialect)

• unsleeping
• unslept-in
• unsliced
• unsling
• unslinging
• unslings
• unslipping
• unsluice
• unsluiced
• unsluices
• unsluicing
• unslumbering
• unslumbrous
• unslung
• unsmart
• unsmiled-on
• unsmiling
• unsmilingly
• unsmirched
• unsmitten
• unsmoked
• unsmooth
• unsmoothed
• unsmoothing
• upstood