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Synonyms

sunny

American  
[suhn-ee] / ˈsʌn i /

adjective

sunnier, sunniest
  1. abounding in sunshine.

    a sunny day.

  2. exposed to, lighted, or warmed by the direct rays of the sun.

    a sunny room.

  3. pertaining to or proceeding from the sun; solar.

  4. resembling the sun.

  5. cheery, cheerful, or joyous.

    a sunny disposition.


sunny British  
/ ˈsʌnɪ /

adjective

  1. full of or exposed to sunlight

  2. radiating good humour

  3. of or resembling the sun

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of sunny

1250–1300 Middle English; see sun, -y 1

Explanation

Sunny means shining with bright sunlight, like a beautiful sunny Saturday at the beach. It can also mean cheerful, like your sunny, upbeat best friend. When the sun is shining, it's a sunny day, and when you're smiling and friendly, you're sunny too. Sunny has been used in this figurative way since the 16th century, and in the 1830s, sunny side came to mean "optimistic outlook." However, if you order your eggs sunny side up, it just means you'll get two fried eggs with bright yellow, runny yolks.

Keep Reading on Vocabulary.com

Vocabulary lists containing sunny

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The Boathouse also has a sunny dockside bar on a wooden deck.

From The Wall Street Journal • May 12, 2026

On a sunny morning a few weeks after Freeport received the exemption, white smoke poured from its smelter above a Baptist church and residential neighborhood.

From Salon • May 10, 2026

The markets got an unwelcome reminder today that the war in Iran isn’t over, clouding a picture that’s recently been dominated by sunny earnings reports.

From Barron's • May 4, 2026

Gamble’s trial, on a sunny Wednesday in mid-April, had drawn an unusually large crowd of about 80 or so outside the municipal court building.

From Slate • May 4, 2026

Jess loved her new room, which was bright and sunny.

From "I Survived the Eruption of Mount St. Helens, 1980" by Lauren Tarshis