Definition of "unmellowed" [unmellowed]

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

The Century Dictionary (Public Domain)

• "I pleaded that the reporters were often young men, eager, and unmellowed in their sense of literary art."
• "The roof rafters are exposed, and the wood colors are raw and unmellowed."
• "In the same manner, I would recommend neither a raw, unmellowed style, which, (if I may so express myself) has been newly drawn off from the vat; nor the rough, and antiquated language of the grave and manly Thucydides."