On the sly
On the sly adverb - In a furtive manner.
Sneaking and on the sly are semantically related. in sneaky topic. In some cases you can use "Sneaking" instead an adjective phrase "On the sly".
Sneaking
Sneaking adjective - Given to acting in secret and to concealing one's intentions.
On the sly and sneaking are semantically related. Sometimes you can use "On the sly" instead an adjective "Sneaking".
Mutual synonyms
Related pairs
- sly and on the sly
- sly and sneaking
- underhanded and on the sly
- underhanded and sneaking
- recreant and on the sly
- recreant and sneaking
- private and on the sly
- private and sneaking
- secret and on the sly
- secret and sneaking
- sneaky and on the sly
- sneaky and sneaking
- concealed and on the sly
- concealed and sneaking
Both terms in one sentence
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Unknown to anyone else, March has not only been shooting himself up with celebrity germs on the sly, he's also been sneaking said germs out of the lab and passing them on to bootleggers.
Source: Film / Antiviral
Cite this Source
Sneaking and On the sly. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/on_the_sly/sneaking
On the sly & Sneaking. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/on_the_sly/sneaking>.
Sneaking or On the sly. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/on_the_sly/sneaking.
