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 pitchy: most pitchy.

"The cold, grey light of earliest morning, that light which is rather the fading of night than the coming of day, filled the room with a faint hue, more cheerless than pitchiest darkness."