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Definition of slyness
slyness
/ˈslaɪ.nəs/
sly · ness
Adverb:slyly
•Adjective:sly
slyness Lexical Profile
CEFR
B2
Grade
7
Tier
2
Usage
Top 10k
Syllables
2
slyness Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
The quality of being cunning, crafty, or deceitful in a secretive or underhanded way.
Example
"The detective immediately recognized the suspect's slyness during the interrogation."
2
Playful, mischievous, or knowing cleverness, often expressed through subtle humor or a secretive look.
Example
"There was a hint of slyness in her smile as she handed over the surprise gift."
Synonyms
View all synonyms for slyness Antonyms
View all antonyms for slyness• Rhymes for slyness
Word Origin & Etymology
Formed in Middle English from the adjective 'sly' (borrowed from Old Norse 'slœgr', meaning clever, cunning, or dexterous) and the native noun-forming suffix '-ness'.
Cite this Entry
Wordmom. (2026). Definition of Slyness. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/slyness