on the sly

Adverb

Meaning

in a furtive manner

Source: WordNet

Synonyms

furtively secretly covertly slyly stealthily confidentially undercover underhandedly under the counter privily privately in private in secret surreptitiously discreetly
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Antonyms

directly fairly publicly openly daylight overtly
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Examples

the soldiers were furtively crawling through the night Source: Internet

After an interlude in the woods, where many have gone to hide, Max meets on the sly with Uncle Freddy, a closeted gay relative, who has a ticket to Amsterdam for him. Source: Internet

Ev began sleeping with Ruth on the sly, and he told Fanny that if only he were free, he'd be glad to marry her daughter. Source: Internet

His only hope: to win a 2-million dollar golf tournament (held on the sly at the local links) and pay Risa off. Source: Internet

I don’t know where my eight pounds landed, but the metamorphosis our bodies make on the sly amazes me. Source: Internet

That time ancient Etruscans stored their souls in a lake and your father was harvesting organs on the sly. Source: Internet

Close letter words and terms

on the skin on the slant on the slide on the sniff on the spectrum on the spot