noun ·see sunfish (b).
2. sunny ·superl cheerful; genial; as, a sunny disposition.
3. sunny ·superl of or pertaining to the sun; proceeding from, or resembling the sun; hence, shining; bright; brilliant; radiant.
4. sunny ·superl exposed to the rays of the sun; brightened or warmed by the direct rays of the sun; as, a sunny room; the sunny side of a hill.