Video shows what flexible means. Capable of being flexed or bent without breaking; able to be turned, bowed, or twisted, without breaking; pliable; not stiff or brittle.. Willing or ready to yield to the influence of others; not invincibly rigid or obstinate; tractable; manageable; ductile; easy and compliant; wavering.. Capable or being adapted or molded; plastic,; as, a flexible language.. flexible pronunciation. How to pronounce, definition by Wiktionary dictionary. flexible meaning. Powered by MaryTTS