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

Saturday should feature a mix of sunshine and clouds with highs around 68 degrees, while Sunday looks mostly sunny and cooler, with temperatures reaching the mid-60s. — The Baltimore Sun, Baltimore Sun, 2 Nov. 2026

Afternoons should be mild and mostly sunny, with lower humidity making outdoor plans more pleasant. — Newsroom Meteorologist, Austin American Statesman, 2 Nov. 2026

Temperatures through the end of the week will be in the low to mid-70s with dry and sunny skies overhead. — Brayden Garcia, Fort Worth Star-Telegram, 2 Nov. 2026

For this reason, sunny windows and steamy bathrooms are not good places to keep perfume. — Brandee Gruener, Southern Living, 1 Nov. 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