This word is acceptable for play in the UK dictionary that is being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The character of being unthinking or thoughtless.

"'But as long as we have kept you alive, and saved you from being transported,' said his wife, 'for which all thanks be due to this good gentleman, we shall mind no hardships, and never go astray again, in wicked unthinkingness of this great mercy.'"