sunny /ˈsʌni/adjective 4adverb 1noun 1forms 3 adjective4 •(of the weather or a day) bright and clear, with a blue skyWhilst it may be sunny today, the weather forecast is predicting rain. •Receiving a lot of sunshine.I would describe Spain as sunny, but it's nothing in comparison to the Sahara. •(figurative) Cheerful.My decayed fair / A sunny look of his would soon repair. — 1594 •Of or relating to the sun; proceeding from, or resembling the sun; shiny; radiant.sunny beams — 1591 adverb1 •(US) sunny side up noun1 •A sunfish. formssunnies · sunnier · sunniest