adjective, sun·ni·er, sun·ni·est.

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 formssun·ni·ly, adverbsun·ni·ness, nounun·sun·ny, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sunnier

Contemporary Examples of sunnier

  • (Think of it as a sunnier heir to the Beatles' reception on The Ed Sullivan Show).

    The Daily Beast logo
    The Making of a Teen Idol

    Maura Johnston

    April 1, 2010

  • "It is possible to build a sunnier outlook in every room," Danziger and Birndorf insist.

    The Daily Beast logo
    The New, New Happiness

    Abigail Pogrebin

    March 5, 2010

Historical Examples of sunnier

British Dictionary definitions for sunnier


adjective -nier or -niest

full of or exposed to sunlight
radiating good humour
of or resembling the sun
Derived Formssunnily, adverbsunniness, 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

Word Origin and History for sunnier



"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