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[suhn-ee] /ˈsʌn i/
adjective, sunnier, sunniest.
abounding in sunshine:
a sunny day.
exposed to, lighted, or warmed by the direct rays of the sun:
a sunny room.
pertaining to or proceeding from the sun; solar.
resembling the sun.
cheery, cheerful, or joyous:
a sunny disposition.
Origin of sunny
1250-1300 Middle English; see sun, -y1
Related forms
sunnily, adverb
sunniness, noun
unsunny, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for sunny
Contemporary Examples
Historical Examples
  • What real worth might lie under this sunny surface the future must determine.

    Within the Law Marvin Dana
  • The mountains were turning purple, and a sunny mist lay all over the shores.

    Rico and Wiseli Johanna Spyri
  • And her sunny locks Hang on her temples like a golden fleece.

    The Foolish Lovers St. John G. Ervine
  • "I mean it," he said, and he quoted the lines about Portia's sunny locks.

    The Foolish Lovers St. John G. Ervine
  • The dismal Hecate did not much like the idea of going abroad into the sunny world.

    Tanglewood Tales Nathaniel Hawthorne
British Dictionary definitions for sunny


adjective -nier, -niest
full of or exposed to sunlight
radiating good humour
of or resembling the sun
Derived Forms
sunnily, adverb
sunniness, noun
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
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Word Origin and History for sunny

"full of sun," c.1300, from sun (n.) + -y (2). Figurative sense of "cheerful" is attested from 1540s. Related: Sunnily; sunniness. Eggs served sunny side up first attested 1900.

Online Etymology Dictionary, © 2010 Douglas Harper
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