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

The low clouds and fog that hung over parts of the Santa Clara area Sunday morning were expected to clear by noon, with the region becoming a bit more sunny. —Kevin Rector, Los Angeles Times, 8 Feb. 2026

The six-episode season streams E4 this week with Wallace uncovering vicious reprisals in Bilbao, Spain’s sunny resort area. —Stephen Schaefer, Boston Herald, 8 Feb. 2026

For example, Hancock recommends this approach when your plants are positioned directly in a sunny south-facing sill. —Gemma Johnstone, The Spruce, 8 Feb. 2026

Johnson was just the sixth racer of the day and found speed with a risk-taking trip along the iconic Olympia delle Tofana course on a sunny day in Cortina. —Andrew Dampf, Chicago Tribune, 8 Feb. 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