The phrase "unanticipated result" refers to an outcome that was unexpected or not predicted. It means something happened that was surprising or different from what was originally thought or planned. Full definition
«Virgo brings a powerful new capability to detect and better locate gravitational - wave sources, one that will undoubtedly lead to exciting and unanticipated results in the future.» (science.howstuffworks.com)
Teachers and pupils would have to adjust to a different style of qualification, he said, and he warned against people «springing to judgement» over unanticipated results. (bbc.co.uk)
If your vehicle does not stop as it should, your reaction time is increased, so you will not be stopping as soon as you would think you should, which could cause unanticipated results. (mechanics.stackexchange.com)