<p><strong>Adjective</strong></p><ul><li>capable of being bent, usually without breaking; easily bent: a flexible ruler.</li><li>Synonyms: supple, elastic, pliable.</li><li>Antonyms: stiff.</li><li>susceptible of modification or adaptation; adaptable: a flexible schedule.</li><li>Synonyms: compliant, tractable.</li><li>Antonyms: rigid.</li><li>willing or disposed to yield; pliable: a flexible personality.</li></ul><p><strong>Noun</strong></p><ul><li>a flexible substance or material, as rubber or leather.</li></ul>