Definition of "mellowing" [mellowing]

• Present participle of mellow. (verb)

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• "It hesitated, its expression mellowing into doubt."
• "Like teenagers who see their elders settling into a personal style of dress, these writers miss their elders 'subtle, but constant, experimentation with style, structure, music, etc., and see maturity as a sort of death or "mellowing"."
• "Just when we thought it was kind of mellowing out it just hits us hard."