What does sinewy mean?
Sinewy describes a person whose lean, muscular physique shows clearly beneath the skin. The word emphasizes the visible or implied strength of the body's sinews rather than bulk, so a sinewy person may be compact and wiry rather than large. Figuratively, it describes determination, resilience, and toughness of character: a sinewy resolve or a sinewy effort suggests strength that has been tested and made formidable. The word can carry a slightly literary tone and is often chosen for its vivid association with physical toughness. It is established in both British and American English, although its figurative use may sound more formal or dramatic in everyday conversation.
adjectiveHaving well-developed sinews and a lean, muscular build; figuratively, showing strong determination, resolve, or toughness.
- Physically lean and muscular, with clearly defined sinews.
- Characterized by strength, determination, or toughness.
"The sinewy climber moved carefully across the exposed rock face."
"His sinewy arms tightened as he pulled the rope."
"The team needed sinewy resolve to finish the difficult climb."
Sinewy describes more than muscle: it can also capture the toughness of someone whose resolve has been tested and hardened.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does sinewy come from?
The adjective comes from the English word “sinew,” meaning a tendon or strong band of connective tissue. “Sinew” descends through Middle English from Old English sinu, and the adjective developed in the sense of having sinews or muscular strength. Its figurative association with endurance and toughness follows naturally from the physical toughness of tendons.
Related word forms
How sinewy is actually used
Usually used of a person's body or physical appearance, and figuratively of character or resolve. It is more literary and evocative than simply describing someone as strong or muscular.