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

• Lexulous
• Wordscraper
• Wordosaur

Not mellowed; not fully matured; not toned down or softened by ripeness or length of years.

"I pleaded that the reporters were often young men, eager, and unmellowed in their sense of literary art."

russet-colored    semi-erect    kite-shaped    half-fledged    round-arched