mellowing
nounUK /ˈmeləʊɪŋ/
US /ˈmeloʊɪŋ/
The act of becoming softer, gentler, or more relaxed.
The mellowing of his temper made him easier to be around.
OTHER MEANINGS
2. The process of fruit becoming soft and sweet as it ripens.
The mellowing of the pears took about a week on the counter.
3. The process of a sound or flavor becoming softer and less harsh.
The mellowing of the wine came with several years in the cellar.
4. The process of a color or light becoming softer and less bright.
The mellowing of the evening light made the garden glow.