Unexpected; something that is beyond one's imagination or anticipation.
料想不到，没有料到。
清·李汝珍《镜花缘》第二回今日这般寒冷，满天雪片飘扬，仙姑忽来下顾，真是意想不到。”
The sudden rain was completely unexpected.
Learn the next connected idiom: 意想不到 (yì xiǎng bú dào) → 道听途说 (dào tīng tú shuō)
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