This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. superlative form of sketchy: most sketchy.

"Operating off the sketchiest of sketches is one of the few plausible reasons why a seasoned, non-crazy politician would go so far as to not just engage on the "birther" issue, but keep it up."