sunny

adjective

sun·​ny ˈsə-nē 

sunnier; sunniest

1

: marked by brilliant sunlight : full of sunshine

2

: cheerful, optimistic

a sunny disposition

3

: exposed to, brightened by, or warmed by the sun

a sunny room

sunnily

ˈsə-nə-lē 

adverb

sunniness

ˈsə-nē-nəs 

noun

Synonyms of sunny

• bright
• cheerful
• radiant
• smiling

Examples of sunny in a Sentence

the sunniest parts of the country

We found a sunny place to have lunch.

If it's sunny later, we can go to the park.

Recent Examples on the Web

By afternoon, skies will turn sunny, breezy, and warm, with highs climbing into the upper 70s in the Hill Country and the lower 80s along and east of Interstate 35. —Mary Wasson, Austin American Statesman, 1 Mar. 2026

Joe-Pye weed rises dramatically from the back of sunny flowerbeds in summer, topped with large pink flowerheads that can last into fall. —Michelle Darrisaw, Southern Living, 1 Mar. 2026

After a weekend of sunny spring temperatures, Kansas City is set to experience high winds, sleet and wintry precipitation Sunday night and rain through next week. —Noelle Alviz-Gransee march 1, Kansas City Star, 1 Mar. 2026

After a sunny Monday with a high near 39 degrees, rain chances are in the forecast nearly every day this week, with Tuesday and Friday looking the most likely for precipitation. —Hope Karnopp, jsonline.com, 1 Mar. 2026

Word History

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing sunny

• sunny-side up

Rhymes for sunny

• bunny
• funny
• gunny
• honey
• money
• runny
• sonny
• tunny

Kids Definition

sunny

adjective

sun·​ny ˈsən-ē 

sunnier; sunniest

1

: bright with sunshine

2

: merry sense 1

a sunny smile

sunnily

ˈsən-ᵊl-ē 

adverb

sunniness

ˈsən-ē-nəs 

noun