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 right: most right.; most right.

"They are certain that what they are doing is the "rightest" thing that they ever did, and King and costermonger, dustman and dockman, and maid servant, labourers, professional men, typists, housewives, Prime Minister -- every single man and woman there is prepared to conquer or die."

beautifullest    shiniest    reddest    supremest    sickest