The best answer is flexible. The relationship between the first pair of words, ADVANCE and RECEDE, is that of antonyms—words that have opposite meanings. Therefore, the second pair of words must also be antonyms. Flexible is an antonym of stiff.
Yesterday's Analogy Quiz
Tomorrow's Analogy Quiz
About Infoplease, Part of Family Education Network
© 2000–2016 Sandbox Networks, Inc., publishing as Infoplease