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lighthearted

[lahyt-hahr-tid]
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adjective
  1. carefree; cheerful; merry: a lighthearted laugh.

Origin of lighthearted

1375–1425; late Middle English ligt-herted; see light2, heart, -ed3
Related formslight·heart·ed·ly, adverblight·heart·ed·ness, noun

Synonyms

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cheery, joyful, blithe, happy, glad, merry, jovial, jocund.

Antonyms

cheerless, melancholy, gloomy.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for light-hearted

light-hearted

adjective
  1. cheerful or carefree in mood or disposition
Derived Formslight-heartedly, adverblight-heartedness, 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 light-hearted

adj.

also lighthearted, "cheerful," c.1400, from light (adj.1) + hearted. Related: Light-heartedly; light-heartedness.

Online Etymology Dictionary, © 2010 Douglas Harper