white-knuckle verb 2adjective 1forms 3 verb2 •To grip tightly in fear, apprehension, suspense, or nervousness.That lifting sensation is so strong, I inadvertently feel myself white-knuckling the hand grips. — 2020 •To endure despite feeling terror, fear, apprehension, anxiety, discomfort, or torment.The rest of the drive home I white knuckled it. — 2010 adjective1 •Causing fear, excitement, apprehension, suspense, or nervousness."No surprise given both Bellamy and White share - or have inherited - Hendrix's unique blend of experimental instincts and white-knuckle showmanship," said Mr Goldsmith. — 2009 formswhite-knuckled · white-knuckling · white-knuckles