a. 1. Bright with the rays of the sun; clear, warm, or pleasant; as, a sunshiny day. [ 1913 Webster ]
2. Bright like the sun; resplendent. [ 1913 Webster ]
Flashing beams of that sunshiny shield. Spenser. [ 1913 Webster ]
3. Beaming with good spirits; cheerful. “Her sunshiny face.” Spenser. [ 1913 Webster ]