slyly (adverb)

1. During the negotiations, the spy slyly revealed crucial information that altered the course of the war.

2. The sleek and slyly designed furniture added a touch of sophistication to the modern apartment.

3. The cunning and slyly character outwitted his opponents in every battle with his strategic moves.

4. The model walked down the runway, slyly flaunting the new designer collection with confidence and grace.