Should dukkha be translated as `being unexpected`?

Dukkha is traditionally translated as suffering, but I heard from a scholar of Eastern history that it's better translated as being unexpected. In my interpretation (not just in what I heard), that suffering only describe what you feel, not the reason making it. Therefore, being unexpected is a better translation. Is this reasonable? If suffering is still a good fit, then what would be the equivalent Pali/Sanskrit word for being unexpected?