Capable of being bent or changed in figure without breaking; specifically, not stiff; pliant; easily bent: as, a flexible rod; a flexible plant.Capable of yielding to entreaties, arguments, or other moral force; that may be persuaded to compliance; not invincibly rigid or obstinate; not inexorable; ductile; manageable; tractable.That may be adapted or accommodated; capable of receiving different forms, or of being applied to a variety of uses; plastic: as, a flexible language; a flexible text.In music, able to execute or perform with rapidity: particularly used of the voice.Synonyms Pliable, supple, limber, lithe, facile, adaptable.