Happy
Sly
Sly adjective - Tending to or exhibiting reckless playfulness.
Usage example: a sly sense of humor
Mutual synonyms
Both words in one sentence
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The Ditz: Costello Dumb Is Good: Abbott is clever and sly and Costello is usually dumb and happy or at least naive and happy-go-lucky.
Source: Creator / Abbott and Costello - Abbott is clever, mean and sly and Costello is usually dumb and happy or at least naive and happy-go-lucky.
Source: Dumb Is Good -
Usually the sarcastic variety, but even when legitimately happy, the most one usually gets out of her is a slight, sly smile.
Source: Flat Joy
Cite this Source
Sly and Happy. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/happy/sly
Happy & Sly. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/happy/sly>.
Sly or Happy. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/happy/sly.
Google Ngram Viewer shows how "happy" and "sly" have occurred on timeline