funster /funˈstər/ (informal)

1. A person who causes merriment
2. A joker or prankster

• unsisterly
• unsisting
• unsizable
• unsizeable
• unsized
• unskan'd
• unskilful
• unskilfully
• unskilfulness
• unskilfulnesses
• unskilled
• unskimmed
• unskinned
• unslain
• unslakable
• unslakeable
• unslaked
• unsleeping
• unslept-in
• unsliced
• unsling
• unslinging
• unslings
• unslipping
• unsluice