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

• aglow
• beaming
• bright
• glowing
• radiant

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

Just like the name suggests, this moisture-wicking dress was designed to keep you cool on sunny, blisteringly hot days. —Amelia McBride, Travel + Leisure, 30 Apr. 2025

Your skin is exposed to UV rays both on cold, cloudy days and sunny ones. —Carrie Madormo, Rn, Mph, Verywell Health, 30 Apr. 2025

Fine details of fur and bark are clearly visible both in sunlight and under shade, with the mini-LED backlight keeping the sunny parts of the frame bright and the shadowy parts dark. —PC Magazine, 28 Apr. 2025

The week is expected to kick off with warm, sunny days well above seasonal average temperatures Monday and Tuesday. —Grace Zokovitch, Boston Herald, 28 Apr. 2025

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