The rats scrambled about with a multiplicity of light gnawing sounds and the clicking of some trifles unstably balanced.
"A Pagan of the Hills"
Charles Neville Buck
The feel of it moving unstably beneath his feet, the sound of its boards cracking loosened his knees.
"The Turnstile"
A. E. W. (Alfred Edward Woodley) Mason
When roads are filled in level with the plain around them, the plain itself wind-churned like a ploughed field, when banks are rompishly erected, or melt unstably before the blows of the storm, it is hard to choose the true road from the false.
"The Happy Foreigner"
Enid Bagnold