Webster's Revised Unabridged Dictionary · 1913

Flexible

Flexible , adjective

[Latin flexibilis: compare French flexible.]

1.
Capable of being flexed or bent; admitting of being turned, bowed, or twisted, without breaking; pliable; yielding to pressure; not stiff or brittle.
When the splitting wind Makes flexible the knees of knotted oaks. — Shakespeare
2.
Willing or ready to yield to the influence of others; not invincibly rigid or obstinate; tractable; manageable; ductile; easy and compliant; wavering.
Phocion was a man of great severity, and no ways flexible to the will of the people. — Bacon
Women are soft, mild, pitiful, and flexible. — Shakespeare
3.
Capable or being adapted or molded; plastic,; as, a flexible language.
This was a principle more flexible to their purpose. — Rogers