A flexible voice.
A job with flexible hours; a flexible definition of normality.
An example of flexible is a yoga expert.
An example of flexible is a work schedule that allows work to be done at any time during the day.
Phocion was a man of great severity, and no ways flexible to the will of the people. -Francis Bacon.
Women are soft, mild, pitiful, and flexible. -William Shakespeare.
A flexible hose.
You can play soccer much better if you're flexible.