Definition of agile adjective in Oxford Advanced Learner's Dictionary. Meaning , pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Agile can mean physically, mentally, or managerially able to move or think quickly and easily. Learn more about the word's usage, synonyms, and related topics with Cambridge Dictionary. The meaning of AGILE is marked by ready ability to move with quick easy grace. How to use agile in a sentence.