IPA: /ˈsʌnɪli/
KK: /ˈsʌnɪli/
In a way that is cheerful and bright, like the sun; with a positive attitude.
She spoke sunnily about her plans for the future.
**Sunnily** → It is formed from "sun" (from Old English *sunne*, meaning the star that provides light and warmth) and "-ly" (meaning in a manner of). The word "sunnily" means in a manner that is bright and cheerful, like the sun.
Think of the sun shining brightly and how that makes everything feel warm and cheerful — that's why "sunnily" means in a cheerful manner.