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 scaly: most scaly.

"I've found, as a general rule in life, that the things that you think are going to be the scaliest nearly always turn out to be not so bad after all; but it wasn't that way with Bingo's tea party."