You're kinda screwed. Your wrist size is primarily determined by bone/tendon, not muscle or fat.
So, if you're a powerlifter...might be a little out of luck. If you're a bodybulder, though,it's good news. Smaller joints make muscles look bigger. Find a pic of Flex Wheeler. He had teeny-tiny wrists and ankles, and it made his already massive muscles look even...massiver? (That's not a word, I know.)
But, think of it this way: most people (myself included) with itty-bitty wrists have similarly small ankles, so the nickname of 'Kankles' isn't in your future.