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Definitions

knife-edge

NOUN
fold
Synonyms
STRONGEST
pleat
STRONG
bend circumvolution cockle convolution corrugation crease crimp crinkle flection flexure furrow gather gathering groove lap lapel layer loop overlap plait plica plication ply pucker ridge ruck ruffle rumple shirring smocking tuck turn wrinkle
WEAK
dog's ear plicature rimple rivel ruche
Antonyms
STRONG
line
NOUN
plica
Synonyms
STRONG
bend circumvolution cockle convolution corrugation crease crimp crinkle flection flexure furrow gather gathering groove lap lapel layer loop overlap plait pleat plication ply pucker ridge ruck ruffle shirring smocking tuck turn wrinkle
WEAK
crumple dog's ear plicature rimple rivel ruche rumple
Antonyms
STRONG
line smoothness
NOUN
plication
Synonyms
STRONG
bend circumvolution cockle convolution corrugation crease crimp crinkle flection flexure furrow gather gathering groove lap lapel layer loop overlap plait pleat plica ply pucker ridge ruck ruffle shirring smocking tuck turn wrinkle
WEAK
crumple dog's ear plicature rimple rivel ruche rumple
Antonyms
STRONG
line smoothness
NOUN
rimple
Synonyms
WEAK
bend circumvolution cockle convolution corrugation crease crimp crinkle crumple dog's ear flection flexure furrow gather gathering groove lap lapel layer loop overlap plait pleat plica plication plicature ply pucker ridge rivel ruche ruck ruffle rumple shirring smocking tuck turn wrinkle
NOUN
ruck
Synonyms
STRONG
bend circumvolution cockle convolution corrugation crease crimp crinkle crumple double flection flexure furrow gather gathering groove lap lapel layer loop overlap plait pleat plica plication ply pucker ridge ruffle rumple shirring smocking tuck turn wrinkle
WEAK
dog's ear plicature rimple rivel ruche
Antonyms
STRONG
line smoothness

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.

Nevertheless, investors should watch Bitcoin through the long weekend with the Middle East situation on a knife edge and market-moving news all but inevitable.

From Barron's • Apr. 3, 2026

One farmer in Somerset told the BBC that he was living on a "knife edge" as his crops were days away from rotting in the floodwater.

From BBC • Feb. 10, 2026

"I had five seizures brought on by extreme stress because I was just living on a knife edge all the time," she added.

From BBC • Sep. 23, 2025

"I've never played a golf course as hard. Every shot is on a knife edge."

From BBC • Jun. 12, 2025

“I want a stamp,” I said, teetering on the knife edge of rudeness.

From "The Evolution of Calpurnia Tate" by Jacqueline Kelly