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

As summer rolls into Charlotte, bringing its sunny skies and somewhat overwhelming humidity, there’s plenty to look forward to. —Independent Picture House, Charlotte Observer, 21 Apr. 2026

For the rest of Tuesday, expect partly to mostly sunny skies with moderating temperatures. —Steven Sosna, CBS News, 21 Apr. 2026

Sarah Jessica Parker heads out for a walk on a sunny day in Los Angeles on April 18. —Toria Sheffield, PEOPLE, 21 Apr. 2026

Last year’s sunnier marathon day, similarly started with temperatures in the mid-40s in the morning but peaked around the high 50s. —Grace Zokovitch, Boston Herald, 20 Apr. 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