Tiānqì yùbào shuō xiàyǔ, dàofǎn chū le dà tàiyáng.
The forecast said rain, but on the contrary the sun came out big.
Tips
usage
倒反 is a slightly more emphatic, slightly old-fashioned cousin of 反而 (fǎn'ér). Both flag a result opposite to what you'd expect. In modern speech 反而 is far more common; 倒反 still appears in Taiwan and in literary registers.
