Dictionary.com
Thesaurus.com
Synonyms

slyly

American  
[slahy-lee] / ˈslaɪ li /

adverb

  1. in a deceitful manner; cunningly.

    They slyly plot to overthrow us.

  2. in a roguish or mischievous way.

    Some were serious, while others slyly winked at the camera.


Etymology

Origin of slyly

First recorded 1350–1400 slyly ( def. 1 ); 1835–40 slyly ( def. 2 ); sly ( def. ) + -ly ( def. )

Vocabulary lists containing slyly

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Through Valerie, Kudrow slyly performs our terminal habit of downgrading devastating developments to champagne problems, merrily chirping her character’s catchphrase, “How’s that?”

From Salon • Mar. 26, 2026

“EPiC” follows Presley as he blazes through classics including “Little Sister,” slyly asserting his influence in rock by segueing into the Beatles’ “Get Back.”

From The Wall Street Journal • Feb. 24, 2026

Alto saxophonist Bobby Watson, a Messenger from 1977 to 1981, is represented by his brightly accessible and slyly swinging “Fuller Love.”

From The Wall Street Journal • Dec. 15, 2025

“But do our children need such concern or do we slyly foster it clinging to our motherly purpose?”

From Los Angeles Times • Dec. 4, 2025

“You’re right. I give up,” he said slyly.

From "The Mysterious Benedict Society" by Trenton Lee Stewart